Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"duc quan anh snippets" » "luc quan anh snippets", "cuc quan anh snippets", "dung quan anh snippets", "duc quan hanh snippets", "duc quang anh snippets", "duc tuan anh snippets", "duc quan anh 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 quan anh 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 quan anh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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