Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"anh duy dac snippets" » "manh duy dac snippets", "anh duc dac snippets", "anh du dac snippets", "anh duy bac snippets", "anh duy doc snippets", "anh duy khac snippets", "anh duy 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: (((("anh duy 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: (((("anh duy dac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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