Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"bac toi pham snippets" » "bac tac pham snippets", "bac vi pham snippets", "bac thi phap snippets", "cac toi pham snippets", "bac tai pham snippets", "ban toi pham snippets", "bac toi pham 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: (((("bac toi pham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bac toi pham snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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