Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"cong hoa thu snippets" » "dong hoa thu snippets", "dong hoc thu snippets", "hang hoa thu snippets", "cong hoai thu snippets", "cong khoa thu snippets", "cong hoa thuo snippets", "cong hoa 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: (((("cong hoa 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: (((("cong hoa thu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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