Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"mem dong tin snippets" » "mem cong tin snippets", "mien dong tin snippets", "lam dong tin snippets", "mem thong tin snippets", "mem luong tin snippets", "mem dong kinh snippets", "mem dong tin 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 dong tin 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 dong tin snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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