Perhaps you should try some spelling variations:
"python using java grippers" » "python using data grippers"
"dung toi lua slippers" » "dung thoi lua slippers", "dung tai lua slippers", "dung doi lua slippers", "dung toi la slippers", "dung hoi luan slippers", "dung thi luan slippers", "dung toi lua slippery"
"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: (((("dung toi lua slippers") or ("python using java grippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung toi lua slippers") OR ("python using java grippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung toi lua slippers ) or ( python using java grippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung toi lua slippers") or ("python using java grippers"))) or ("locating bug code snippets"))*.