Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"han van hau snippets" » "phan van hau snippets", "nhan van hau snippets", "hanh van hau snippets", "han van ha snippets", "han van hai snippets", "han van dau snippets", "han 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: (((("han 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: (((("han van hau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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