Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"khoi van hau snippets" » "khoi can hau snippets", "khoi va hau snippets", "thoai van hau snippets", "khoi van ha snippets", "khoi van hai snippets", "khoi van dau snippets", "khoi van hau 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: (((("khoi van hau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoi van hau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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