Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"manh hoc dat snippets" » "anh hoc dat snippets", "manh ho dat snippets", "manh hon dat snippets", "manh hoc dan snippets", "manh hoc dai snippets", "manh hoc phat snippets", "manh hoc dat 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: (((("manh hoc dat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("manh hoc dat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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