Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"duc lam dung snippets" » "duc lam dong snippets", "duc lan dung snippets", "duc am dung snippets", "duoc lam dung snippets", "duc nam dung snippets", "luc lam dung snippets", "duc lam 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: (((("duc lam 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: (((("duc lam dung snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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