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Filter wordpress posts without searching the keywords in the post content

We’ve a courses website where we want to filter posts/courses by the keywords present in the category and/or title. Currently when filtering, the keyword is also being searched in the post content which is what we want to exclude. Is there a way to exclude searching in the post content via a hook or filter in wordpress ?

Attached is the image of the search results where the first search result doesn’t contain a computer word either in the title or the category but still it shows in the results.

Update
Forgot to mention that it’s a custom post type job_listing.