Perhaps you should try some spelling variations:
"python using java slippery" » "python using data slippery"
"doan tinh do slippers" » "doan hinh do slippers", "ban tinh do slippers", "quan tinh do slippers", "doan trinh do slippers", "doan tinh doi slippers", "doan tinh da slippers", "doan tinh do 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: (((("doan tinh do slippers") or ("python using java slippery"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doan tinh do slippers") OR ("python using java slippery"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doan tinh do slippers ) or ( python using java slippery ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doan tinh do slippers") or ("python using java slippery"))) or ("locating bug code snippets"))*.