Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"noi dan luan slippers" » "noi doanh luan slippers", "noi dung luan slippers", "noi tang luan slippers", "hoi dan luan slippers", "noi da luan slippers", "doi dan luan slippers", "noi dan luan slippery", "noi dan luan 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: (((("noi dan luan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
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