Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"tran anh len snippets" » "tran manh len snippets", "tuan anh len snippets", "tran thanh len snippets", "tran anh le snippets", "tran danh lien snippets", "tran anh kien snippets", "tran anh len 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: (((("tran anh len snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran anh len snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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