Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung lam thi slippers" » "dung luan thi slippers", "dung tai thi slippers", "dung dat thi slippers", "dung lam thoi slippers", "dung dam thi slippers", "dung lam tai slippers", "dung lam thi slippery", "dung lam thi 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 lam thi slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
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