Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"wei pan luan snippets" » "wei dan luan snippets", "wei san luan snippets", "wei han luan snippets", "wei tan luan snippets", "wei tang luan snippets", "wei fang luan snippets", "wei pan luan 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: (((("wei pan luan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("wei pan luan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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