Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"dao hoi phan snippets" » "dao phoi phan snippets", "dao hoc phan snippets", "dao hoa phan snippets", "dao thoi phan snippets", "dai hoi phan snippets", "dao ho phan snippets", "dao hoi 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: (((("dao hoi 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: (((("dao hoi phan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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