Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"toc noi dau snippets" » "hoc noi dau snippets", "toc nguoi dau snippets", "toeic noi dau snippets", "toc doi dau snippets", "toc noi da snippets", "toc goi dau snippets", "toc noi dau 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: (((("toc noi dau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toc noi dau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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