Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"duc co sach snippets" » "duc bo sach snippets", "duc cuon sach snippets", "duc hoc sach snippets", "duoc co sach snippets", "duc con sach snippets", "tuc co sach snippets", "duc co 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: (((("duc co sach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duc co sach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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