Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"toc pham dac snippets" » "tac pham dac snippets", "toc cham dac snippets", "toi pham dac snippets", "toc pham duc snippets", "toc pham dang snippets", "toc pham sach snippets", "toc pham dac 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: (((("toc pham dac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toc pham dac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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