Perhaps you should try some spelling variations:
"python using java grippers" » "python using data grippers"
"phan huu han slippers" » "pham huu han slippers", "phan huy han slippers", "phan hieu han slippers", "pnhan huu nhan slippers", "phanh huu hanh slippers", "phang huu hang slippers", "phan huu han 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: (((("phan huu han slippers") 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 slippers") OR ("python using java grippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan huu han slippers ) or ( python using java grippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan huu han slippers") or ("python using java grippers"))) or ("locating bug code snippets"))*.