Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"duy vinh anh snippets" » "dung vinh anh snippets", "quy dinh anh snippets", "duy van anh snippets", "duy hinh anh snippets", "duy minh anh snippets", "duy minh danh snippets", "duy vinh 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: (((("duy vinh 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: (((("duy vinh anh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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