Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoi tao danh slippers" » "hoi cao danh slippers", "hoi tac danh slippers", "hoi tao anh slippers", "hoi thao danh slippers", "hoi tai danh slippers", "hoi tho danh slippers", "hoi tao danh slippery", "hoi tao danh 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 ("hoi tao danh slippers"))) or ("locating bug code snippets"))~.
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