Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"dan hoc hyun snippets" » "dan hoc hien snippets", "dan hoc huu snippets", "dan hoc han snippets", "van hoc hyun snippets", "dan toc hyun snippets", "dai hoc hyun snippets", "dan hoc hyun 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: (((("dan hoc hyun snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan hoc hyun snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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