Perhaps you should try some spelling variations:
"python using java slippery" » "python using data slippery"
"dan thi luu slippers" » "dang thi luu slippers", "tran thi luu slippers", "dinh thi luu slippers", "dan thi huu slippers", "dan thi buu slippers", "dan thi lu slippers", "dan thi luu 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.

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