Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java slippers" » "python using data slippers", "python using java slippery"
"doan thi lu grippers" » "dan thi lu grippers", "doanh tai lu grippers", "hoang thi lu grippers", "doan thi luu grippers", "doan thi le grippers", "doan thi ly grippers"

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 lu grippers") or ("python using java slippers"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doan thi lu grippers") OR ("python using java slippers"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( doan thi lu grippers ) or ( python using java slippers ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doan thi lu grippers") or ("python using java slippers"))) or ("locating bug core snippets"))*.