Perhaps you should try some spelling variations:
"python using data slippery" » "python using java slippery", "python using sat slippery", "python missing data slippery"
"ke yan zhang slippers" » "ke yang zhang slippers", "ke ban hang slippers", "ke van khang slippers", "ke dan zhang slippers", "ke san zhang slippers", "ke ban zhang slippers", "ke yan zhang grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("ke yan zhang slippers") or ("python using data slippery"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ke yan zhang slippers") OR ("python using data slippery"))) OR ("locating bug code snippets")).
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