Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"dau hoi sinh snippets" » "dau hoa sinh snippets", "dau hoc sinh snippets", "dau hoi tinh snippets", "cau hoi sinh snippets", "dai hoi sinh snippets", "dan hoi sinh snippets", "dau hoi sinh 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: (((("dau hoi sinh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dau hoi sinh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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