Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"dau hai phan snippets" » "dau thai phan snippets", "dau tai phan snippets", "dau hai pham snippets", "dai hai phan snippets", "dau ha phan snippets", "cau hai phan snippets", "dau hai phan 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: (((("dau hai phan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dau hai phan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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