Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"lon vo nhat snippets" » "lon voi nhat snippets", "lon do nhat snippets", "lon vo nhai snippets", "lon va nhat snippets", "lon ve nhat snippets", "lon vi nhat snippets", "lon vo nhat 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: (((("lon vo nhat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lon vo nhat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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