Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"tran thu dan snippets" » "tran thuy dan snippets", "tran thi dan snippets", "tuan thu dan snippets", "tran thuc dan snippets", "tran thu dang snippets", "tran thu ban snippets", "tran thu dan 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: (((("tran thu dan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran thu dan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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