Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"han duc nhan snippets" » "han duc phan snippets", "han dac nhan snippets", "han luc nhan snippets", "phan duc nhan snippets", "than duc nhan snippets", "van duc nhan snippets", "han duc nhan 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: (((("han duc nhan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("han duc nhan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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