Perhaps you should try some spelling variations:
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data snippets"
"hoi cho toc snippets" » "hoi chu toc snippets", "hoi co toc snippets", "hoc cho toc snippets", "hoi cho hoc snippets", "hoi cao toc snippets", "hoi cho toa snippets"
"locating bug code snippets" » "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: (((("hoi cho toc snippets") or ("python using data snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoi cho toc snippets") OR ("python using data snippets"))) OR ("locating bug code snippets")).
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