Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"hoi nham thu snippets" » "hoi nhap thu snippets", "hoi cham thu snippets", "hoc nham thu snippets", "hoi nham thuc snippets", "hoi nam thu snippets", "hoi pham thu snippets", "hoi nham thu 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: (((("hoi nham thu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoi nham thu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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