Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"dan hoc nho snippets" » "van hoc nho snippets", "dan toc nho snippets", "dai hoc nho snippets", "dan hoc pho snippets", "dan hoc cho snippets", "dan hoc nha snippets", "dan hoc nho 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 nho 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 nho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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