Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu hoai cai snippets" » "thi hoai cai snippets", "thu hai cai snippets", "thu hoan cai snippets", "thu thoai cac snippets", "thu hoa cac snippets", "thu hoai nam snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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