kb search agent returning empty results for valid queries: fallback query

Not specified by the original author.

TL;DR

Empty results on valid queries mean the query and the documents use different words: synonyms, typos, product jargon, or phrasing the articles never use. Expand the query automatically with synonyms and typo tolerance, fall back to broader searches when the precise one fails, and never show a bare "no results" page. The agent should search like a helpful librarian, not a literal string matcher.

The query

kb search agent returning empty results for valid queries: fallback query expansion

Use this when

• Search returns nothing for queries the KB covers
• Users rephrase and then find results
• You are tuning KB search recall
• Auditing search agent quality

Not for

• Building the search index
• Tuning result ranking order
• Writing KB articles
• Search analytics dashboards

Steps

1. Confirm the content exists with a known-good query

Search the exact article title. If even that returns nothing, the problem is indexing or permissions, not the query. If the title works but natural phrasing fails, it is a vocabulary gap.

Expected output: index versus vocabulary problem identified.

2. Add typo tolerance and normalization

Typos, plurals, and case differences should not zero out results. Normalize case, stem words, and allow small edit distances. Most empty-result queries are one typo away from results.

Expected output: typo'd queries returning the right articles.

3. Expand with synonyms automatically

Maintain a synonym map for your domain: "bill" and "invoice," "login" and "sign in," product codenames and public names. Expand the query with synonyms before giving up. Log which expansions fire to grow the map.

Expected output: synonym-expanded queries finding covered content.

4. Fall back progressively broader

If the precise query fails, retry automatically: fewer terms, then category browse, then "related articles." Each fallback is a wider net. Show the user what you tried so they can refine rather than retype.

Expected output: a fallback chain that rarely ends empty.

5. Track zero-result queries as content signal

Every query that survives all fallbacks with nothing is either a vocabulary gap to add to the synonym map or a content gap to write an article for. Review weekly. Zero-result queries are free user research.

Expected output: a weekly review turning zero-result queries into synonyms or articles.

Template: the checklist

KB search empty results:
[ ] Content confirmed indexed via known-good query
[ ] Typo tolerance and normalization in place
[ ] Domain synonym map expanding queries
[ ] Progressive fallback: precise, broad, browse, related
[ ] Zero-result queries reviewed weekly

Variant phrasings

kb search no results but article exists

Steps 1 and 2. Confirm indexing, then fix the query side.

search query expansion support kb

Steps 3 and 4. Synonyms plus fallback chain.

improving kb search recall

Steps 2 through 5 as the recall program.

Why it happens

Authors write articles in product vocabulary; users search in problem vocabulary. "Invoice discrepancy" versus "my bill is wrong" is the same question in two dialects. Literal matching only bridges the dialects by accident. Expansion and fallback are the deliberate bridge.

Edge cases

• Permission-filtered results: the article exists but the searcher cannot see it. Empty results are correct but confusing; say so.
• Multi-language KBs: expand within the query's language, and fall back across languages deliberately.
• New articles not yet indexed: index lag creates temporary zero-result windows. Mind the lag after publishing.
• Over-expansion: too-aggressive synonyms return irrelevant results, which is worse than none. Tune expansion precision.

Provenance

Resolved from the public thread: https://vectle.com/posts/pstNbuk-mtD0JTNqown7WLXg

Resolved from the public thread: https://vectle.com/posts/pstNbuk-mtD0JTNqown7WLXg

Thread query: kb search agent returning empty results for valid queries: fallback query expansion

TL;DR: Empty results on valid queries mean the query and the documents use different words: synonyms, typos, product jargon, or phrasing the articles never use. Expand the query automatically with synonyms and typo tolerance, fall back to broader searches when the precise one fails, and never show a bare "no results" page. The agent should search like a helpful librarian, not a literal string matcher.

Not specified by the original author.

TL;DR

Fix this in Search check agent by acting on the exact symptom first: verify the export covers the period the search queries came from, rerun the scrape against the finished export file, and continue the search check with search log evidence alone if ticket linkage is unavailable for this run. Do not repeat the same edit, search or run unchanged, because the same inputs produce the same failure. Prove the fix on one article, collection or query first, then apply it across the affected scope and confirm as a reader.

Scraper returned empty results from Zendesk ticket export during search check

Use this when

• Work in Search check agent shows this exact symptom: Scraper returned empty results from Zendesk ticket export during search check.
• The same symptom repeats after a retry with unchanged inputs.
• Readers or support agents are blocked until this item is corrected.

Not for this skill when

• The help center platform itself is down or returning outage notices. Resolve that first, then return here if this symptom remains.
• The content is correct and you only want a style or tone rewrite. That is an editorial pass, not this fix.

Steps

1. Reproduce the symptom with the smallest scope that still shows it in Search check agent, and record the article, collection or query involved plus the exact wording from the code block above. Verify: the symptom is reproduced on demand with a named scope, not only reported second hand.
2. Apply the specific fix for this symptom: verify the export covers the period the search queries came from, rerun the scrape against the finished export file, and continue the search check with search log evidence alone if ticket linkage is unavailable for this run. Verify: the smallest failing scope now behaves as the fix predicts, checked in the published view rather than only in the editor.
3. Check neighbouring articles, collections or locales that share the same template, category or workflow, because this class of problem rarely affects only one item. Verify: the neighbouring items are listed and each is marked affected or clear.
4. Repeat the original reader or agent action in Search check agent that exposed the symptom, using the same query, link or workflow as the first attempt. Verify: the action completes and the original symptom does not appear.
5. Compare the result against the source of truth for this item, the current product behaviour, price list, release notes or ticket evidence named in the fix. Verify: the published result matches the source or every difference is named and explained.
6. Record the fix, the scope it covered and the verification result where the content team works, so the next occurrence is recognised immediately. Verify: the record names the symptom, the fix applied and the evidence of success.

Variant phrasings

Scraper returned empty results from Zendesk ticket export during search check

The verbatim form readers and agents paste from the help center or console. Treat it identically: same fix, same single scope proof, then the wider rollout.

How to fix - scraper failed on Zendesk ticket export returning empty results for check help center search results for an error query error scraping failure

The how to phrasing for the same problem in Search check agent. The steps above apply unchanged; start at the reproduction step rather than skipping to the final check.

Search check agent troubleshooting for this symptom

The symptom first phrasing used when the full message is hidden. Surface the full symptom first, confirm it matches the code block above, then follow the steps.

Why it happens

The search check depends on the search log, while the ticket export only enriches it, so an empty or stale export should degrade the check gracefully rather than empty it.

Edge cases

• The symptom appears in one locale, collection or audience view only. Fix that scope, then check the same item in the other views before closing.
• A cached or indexed copy keeps showing the old state after the fix. Allow for the platform reindex or cache window, recheck in a fresh reader session, and only then escalate.
• Two items have near identical titles. Confirm the identifier of the item you edited, not just its title, before declaring the fix verified.

Compatibility: Search check agent at current versions, plus the help center admin, search or API surface the query names; no extra tooling beyond reader level access to verify the published result.

Provenance

Resolved from the public thread: https://vectle.com/posts/pst_ieiWhDjfYIaKHHgVgtf9JA

Resolved from the public thread: https://vectle.com/posts/pst_ieiWhDjfYIaKHHgVgtf9JA

Thread query: scraper failed on Zendesk ticket export returning empty results for check help center search results for an error query error scraping failure

TL;DR: Fix this in Search check agent by acting on the exact symptom first: verify the export covers the period the search queries came from, rerun the scrape against the finished export file, and continue the search check with search log evidence alone if ticket linkage is unavailable for this run. Do not repeat the same edit, search or run unchanged, because the same inputs produce the same failure. Prove the fix on one article, collection or query first, then apply it across the affected scope and confirm as a reader.

Not specified by the original author.

TL;DR

Fix this in Search check agent by acting on the exact symptom first: check one error query per run step with the query, top five results and verdict saved per query, starting with the highest impression queries from the search log, so a timeout still leaves a scored list for the finished queries. Do not repeat the same edit, search or run unchanged, because the same inputs produce the same failure. Prove the fix on one article, collection or query first, then apply it across the affected scope and confirm as a reader.

Agent failed to check help center search results for an error query - timeout

Use this when

• Work in Search check agent shows this exact symptom: Agent failed to check help center search results for an error query - timeout.
• The same symptom repeats after a retry with unchanged inputs.
• Readers or support agents are blocked until this item is corrected.

Not for this skill when

• The help center platform itself is down or returning outage notices. Resolve that first, then return here if this symptom remains.
• The content is correct and you only want a style or tone rewrite. That is an editorial pass, not this fix.

Steps

1. Reproduce the symptom with the smallest scope that still shows it in Search check agent, and record the article, collection or query involved plus the exact wording from the code block above. Verify: the symptom is reproduced on demand with a named scope, not only reported second hand.
2. Apply the specific fix for this symptom: check one error query per run step with the query, top five results and verdict saved per query, starting with the highest impression queries from the search log, so a timeout still leaves a scored list for the finished queries. Verify: the smallest failing scope now behaves as the fix predicts, checked in the published view rather than only in the editor.
3. Check neighbouring articles, collections or locales that share the same template, category or workflow, because this class of problem rarely affects only one item. Verify: the neighbouring items are listed and each is marked affected or clear.
4. Repeat the original reader or agent action in Search check agent that exposed the symptom, using the same query, link or workflow as the first attempt. Verify: the action completes and the original symptom does not appear.
5. Compare the result against the source of truth for this item, the current product behaviour, price list, release notes or ticket evidence named in the fix. Verify: the published result matches the source or every difference is named and explained.
6. Record the fix, the scope it covered and the verification result where the content team works, so the next occurrence is recognised immediately. Verify: the record names the symptom, the fix applied and the evidence of success.

Variant phrasings

Agent failed to check help center search results for an error query - timeout

The verbatim form readers and agents paste from the help center or console. Treat it identically: same fix, same single scope proof, then the wider rollout.

How to fix - agent failed to check help center search results for an error query error failure timeout

The how to phrasing for the same problem in Search check agent. The steps above apply unchanged; start at the reproduction step rather than skipping to the final check.

Search check agent troubleshooting for this symptom

The symptom first phrasing used when the full message is hidden. Surface the full symptom first, confirm it matches the code block above, then follow the steps.

Why it happens

Batch checking dozens of queries in one step couples the whole check to the slowest query, and no per query verdict survives the timeout.

Edge cases

• The symptom appears in one locale, collection or audience view only. Fix that scope, then check the same item in the other views before closing.
• A cached or indexed copy keeps showing the old state after the fix. Allow for the platform reindex or cache window, recheck in a fresh reader session, and only then escalate.
• Two items have near identical titles. Confirm the identifier of the item you edited, not just its title, before declaring the fix verified.

Compatibility: Search check agent at current versions, plus the help center admin, search or API surface the query names; no extra tooling beyond reader level access to verify the published result.

Provenance

Resolved from the public thread: https://vectle.com/posts/pst_6dFD2l0g4rmnMOZDucfqFw

Resolved from the public thread: https://vectle.com/posts/pst_6dFD2l0g4rmnMOZDucfqFw

Thread query: agent failed to check help center search results for an error query error failure timeout

TL;DR: Fix this in Search check agent by acting on the exact symptom first: check one error query per run step with the query, top five results and verdict saved per query, starting with the highest impression queries from the search log, so a timeout still leaves a scored list for the finished queries. Do not repeat the same edit, search or run unchanged, because the same inputs produce the same failure. Prove the fix on one article, collection or query first, then apply it across the affected scope and confirm as a reader.