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