Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"tan duc phan snippets" » "tan dung phan snippets", "tan duc thang snippets", "tan duc phung snippets", "tran duc phan snippets", "tan duoc phan snippets", "than duc phan snippets", "tan duc 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: (((("tan duc 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: (((("tan duc phan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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