A keyword in Google Ads is a target — a signal telling the auction system what kind of query should be eligible to trigger an ad. A search term is what a real person actually typed into Google. Because of broad and phrase match behavior, these two can diverge significantly, and the gap between them is one of the most underused optimization levers in an account.
Why Keywords and Search Terms Aren’t the Same Thing
Match types don’t work the way they did years ago. Broad match today uses signals from the whole account — landing pages, other keywords, past conversion data — to decide which queries are eligible, which means a broad match keyword can trigger ads for queries that share no words with the keyword itself. Even phrase match now allows word insertion and reordering around the core phrase.
This is by design — Google’s stated goal is to find more relevant queries than an exact keyword list alone would surface — but it also means the keyword list in the campaign no longer tells you what’s actually driving impressions and clicks.
Reading the Search Terms Report Correctly
The Search Terms report (under Insights and Reports, or the Search Terms tab) shows the actual queries that triggered an ad, alongside which keyword and match type matched them. Two things to check here every optimization cycle: search terms with spend but no conversions — negative keyword candidates — and search terms with conversions that aren’t currently in the account as keywords — expansion candidates.
A search term appearing frequently with strong CTR but showing as matched to an unrelated broad match keyword is a clear signal that keyword’s targeting has drifted.
Turning Search Terms Into Negative Keywords
Negatives should be added at the level where the wasted spend is happening — campaign-level for irrelevant queries appearing across every ad group, ad group-level for queries that are relevant to the account but wrong for that specific ad group’s intent. Adding negatives too aggressively at the campaign level can accidentally block a query that converts well in a different ad group.
A recurring pattern worth watching for: informational queries (‘what is’, ‘how to’, ‘meaning of’) converting poorly on a transactional landing page — these are usually cheap to exclude and immediately improve conversion rate without touching bids.
Turning Search Terms Into New Keywords
The inverse move is just as valuable: a converting search term not yet in the account as its own keyword can often be added as exact match to gain more control over its bid and ad copy relevance, rather than leaving it to be caught incidentally by a broader match type. This tends to improve Quality Score on that specific query because the ad copy and landing page can now be tailored to it directly.
How Often to Review This Data
For accounts with meaningful daily spend, a weekly search-terms review catches wasted spend before it compounds; for lower-spend accounts, a bi-weekly or monthly cadence is usually sufficient to see a statistically meaningful pattern rather than reacting to noise from a handful of clicks.
Frequently Asked Questions
Why is my broad match keyword triggering completely unrelated searches?
Broad match uses account-wide signals — landing pages, other keywords, conversion history — not just the words in the keyword itself, so it can match queries with no overlapping words at all.
How many negative keywords is too many?
There’s no fixed number — the goal is precision, not volume. Over-aggressive campaign-level negatives can silently exclude converting traffic in unrelated ad groups.
Should every converting search term become an exact match keyword?
Only the recurring, meaningfully converting ones — adding every one-off long-tail query as its own keyword adds management overhead without proportional benefit.
Does the Search Terms report show 100% of queries?
No — Google withholds low-volume or privacy-sensitive search terms from the report, so some spend will always be attributed to keywords without a visible underlying query.
Continue Learning With SG Gurukul
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