Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"phan duc bat snippets" » "pham duc bat snippets", "phan tu bat snippets", "phan dau bat snippets", "phan duoc bat snippets", "phan duc ban snippets", "phan duc bao snippets", "phan duc bat 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 duc bat 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 duc bat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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