Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"bao tran ha snippets" » "bao toan ha snippets", "ban tran ha snippets", "bao tram ha snippets", "bao tran hai snippets", "bao trang ha snippets", "bao tran han snippets", "bao tran ha 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: (((("bao tran ha snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bao tran ha snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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