Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"mem chon tao snippets" » "hiem chon tao snippets", "mem cong tao snippets", "mo chon tao snippets", "mem che tao snippets", "mem cho dao snippets", "mem nhan tao snippets", "mem chon 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: (((("mem chon 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: (((("mem chon tao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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