Perhaps you should try some spelling variations:
"python using java grippers" » "python using data grippers", "python using java slippers"
"n trinh chu slippery" » "n trinh cau slippery", "n trinh cho slippery", "n trinh thuc slippery", "p trinh chu slippery", "anh trinh chu slippery", "dan trinh chu slippery", "n trinh chu 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: (((("python using java grippers") or ("n trinh chu slippery"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java grippers") OR ("n trinh chu slippery"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java grippers ) or ( n trinh chu slippery ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java grippers") or ("n trinh chu slippery"))) or ("locating bug code snippets"))*.