Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"xac thu oanh snippets" » "xac thuy oanh snippets", "xac thi oanh snippets", "xac thu canh snippets", "cac thu oanh snippets", "xuan thu oanh snippets", "sach thu oanh snippets", "xac thu oanh 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: (((("xac thu oanh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("xac thu oanh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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