Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho xuat lua slippers" » "ho xuan lua slippers", "hoa xuat lua slippers", "cho xa lua slippers", "cho xuat cua slippers", "cho xuat sua slippers", "cho xuat rua slippers", "cho xuat lua slippery", "cho xuat lua grippers"
"locating bug code snippets" » "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: (((("python using java snippets") or ("cho xuat lua slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("cho xuat lua slippers"))) OR ("locating bug code snippets")).
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