Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"che cac nhan snippets" » "che ca nhan snippets", "che cac nha snippets", "che cam nhan snippets", "cho cac nhan snippets", "che tac nhan snippets", "he cac nhan snippets", "che cac nhan 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: (((("che cac nhan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("che cac nhan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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