Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"luan anh ten snippets" » "luan danh ten snippets", "tuan anh ten snippets", "lan anh ten snippets", "luan anh tieng snippets", "luan anh tuyen snippets", "luan manh tien snippets", "luan anh ten 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: (((("luan anh ten snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luan anh ten snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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