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