Perhaps you should try some spelling variations:
"python using java grippers" » "python using data grippers", "python using java slippers"
"phan huu han slippery" » "pham huu han slippery", "phan huy han slippery", "phan hieu han slippery", "pnhan huu nhan slippery", "phanh huu hanh slippery", "phang huu hang slippery", "phan huu han 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: (((("phan huu han slippery") or ("python using java grippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan huu han slippery") OR ("python using java grippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan huu han slippery ) or ( python using java grippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan huu han slippery") or ("python using java grippers"))) or ("locating bug code snippets"))*.