Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"anh tang khu snippets" » "anh bang khu snippets", "anh dang khu snippets", "anh nang khu snippets", "anh tai khu snippets", "anh tang ha snippets", "anh tang thi snippets", "anh tang khu 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: (((("anh tang khu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("anh tang khu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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