Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"khi nhan anh snippets" » "khi nha anh snippets", "thi nhan anh snippets", "chi nhanh anh snippets", "khi nhat anh snippets", "khi phan anh snippets", "khi nhan nhanh snippets", "khi nhan 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 nhan 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 nhan anh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khi nhan anh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
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