Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"phan duy bac snippets" » "pham duy bac snippets", "phan huy bac snippets", "phan duc bac snippets", "phan du bac snippets", "phan duy ba snippets", "phan duy dac snippets", "phan duy bac 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: (((("phan duy bac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan duy bac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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