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