Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"hoa van phan snippets" » "hoa van phong snippets", "hoa van thanh snippets", "hoa luan phan snippets", "hoa dan phan snippets", "hoang van phan snippets", "hoa phan phan snippets", "hoa van phan 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: (((("hoa van phan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoa van phan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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