Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"quan co trac snippets" » "quan so trac snippets", "quan ao trac snippets", "quan ho trac snippets", "quan co trach snippets", "quan hoi trac snippets", "quan bo trach snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("quan co trac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quan co trac snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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