Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"duy tang thi snippets" » "duy sang thi snippets", "duy tung thi snippets", "duc tang thi snippets", "duy dang thi snippets", "duy tang tai snippets", "duy hoang thi snippets", "duy tang thi 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 tang thi 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 tang thi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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