Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung ha lu slippers" » "dung va lu slippers", "dung he lu slippers", "dung khoa lu slippers", "dung hoa lu slippers", "dung ha le slippers", "dung ha vu slippers", "dung ha lu slippery", "dung ha lu 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: (((("dung ha lu slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
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