Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"duc cac nhat snippets" » "duc cac nha snippets", "duc cac nhan snippets", "duc cac chat snippets", "duoc cac nhat snippets", "tuc cac nhat snippets", "muc cac nhat snippets", "duc cac nhat 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 cac nhat 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 cac nhat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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