Perhaps you should try some spelling variations:
"python using data slippery" » "python using java slippery", "python using sat slippery", "python missing data slippery"
"tu thu dan slippers" » "tu thuc dan slippers", "tu thu dang slippers", "tu thu ban slippers", "tu tu dan slippers", "vu thu dan slippers", "tieu thu dan slippers", "tu thu dan grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tu thu dan slippers") OR ("python using data slippery"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( tu thu dan slippers ) or ( python using data slippery ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("tu thu dan slippers") or ("python using data slippery"))) or ("locating bug code snippets"))*.