Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"cho thu phan snippets" » "cho thu nhan snippets", "cho thuat phan snippets", "cho than phan snippets", "cho thue phan snippets", "cho chu phan snippets", "cho phu phan snippets"

Try widening your search to All Fields.

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