Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"lua hoi tran snippets" » "lua hoi trac snippets", "lua thoi trang snippets", "lua hoi thanh snippets", "luat hoi tran snippets", "cua hoi tran snippets", "lua doi tran snippets", "lua hoi tran 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: (((("lua hoi tran snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lua hoi tran snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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