Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"che ho khoa snippets" » "che hoc khoa snippets", "che hoi khoa snippets", "che hop khoa snippets", "che do khoa snippets", "he ho khoa snippets", "che khoa khoa snippets", "che ho khoa 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: (((("che ho khoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("che ho khoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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