Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"luan cai tao snippets" » "luan chi tao snippets", "luan giai tao snippets", "luan chat tao snippets", "luan cau tao snippets", "luan tai tao snippets", "luan cay tao snippets", "luan cai tao 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 cai tao 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 cai tao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luan cai tao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
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