Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"khoa co tap snippets" » "hoa co tap snippets", "khoa cong tap snippets", "khoa hoc tap snippets", "khoa con tap snippets", "khoa cp tap snippets", "khoa co bap snippets", "khoa co tap slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("khoa co tap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoa co tap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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