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