Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"dac nhan len snippets" » "cac nhan len snippets", "danh nhan len snippets", "ca nhan len snippets", "dac nhan gen snippets", "dac nhay len snippets", "dac nhan vien snippets", "dac nhan len 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: (((("dac nhan len snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dac nhan len snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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