Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu hoai dat slippers" » "thi hoai dat slippers", "thu hai dat slippers", "thu hoan dat slippers", "thu hoi dat slippers", "thu hoa dat slippers", "thu hoach dat slippers", "thu hoai dat slippery", "thu hoai dat 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 ("thu hoai dat slippers"))) or ("locating bug code snippets"))~.
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