Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"tran hong ma snippets" » "tran hoang ma snippets", "tran hung ma snippets", "tran trong ma snippets", "tran chong ma snippets", "tran hong mat snippets", "tran khong ma snippets", "tran hong ma 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: (((("tran hong ma snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran hong ma snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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