Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"duc man sach snippets" » "duc mang sach snippets", "duc mat sach snippets", "duc ban sach snippets", "duc manh sach snippets", "duc tan sach snippets", "duc mau sach snippets", "duc man sach 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: (((("python using java snippets") or ("duc man sach snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("duc man sach snippets"))) OR ("locating bug code snippets")).
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