Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"khi nhat anh snippets" » "khoi nhat anh snippets", "khi nha anh snippets", "khi nhan anh snippets", "khi nhat hanh snippets", "khi nhat minh snippets", "khi nhat ban snippets", "khi nhat 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: (((("khi nhat 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: (((("khi nhat anh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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