Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"duy tung phi snippets" » "duy tuong phi snippets", "duc tung phi snippets", "duy dung phi snippets", "duy xung phi snippets", "duy tung pham snippets", "duy vuong phi snippets", "duy tung phi 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: (((("duy tung phi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duy tung phi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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