Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"sam duc dung snippets" » "sam duc hung snippets", "sam duc cuong snippets", "sam duc phung snippets", "pham duc dung snippets", "nam duoc dung snippets", "lam duoc dung snippets", "sam duc dung 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: (((("sam duc dung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sam duc dung snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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