Perhaps you should try some spelling variations:
"python using data slippery" » "python using java slippery", "python using sat slippery", "python missing data slippery", "python using data slippers"
"se tao zhang grippers" » "se tao khoang grippers", "se tao nhan grippers", "de tao zhang grippers", "se tam zhang grippers", "se tao zhang slippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets", "locating bug code slippers"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("se tao zhang grippers") or ("python using data slippery"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("se tao zhang grippers") OR ("python using data slippery"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( se tao zhang grippers ) or ( python using data slippery ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("se tao zhang grippers") or ("python using data slippery"))) or ("locating bug code snippets"))*.