Perhaps you should try some spelling variations:
"python using java grippers" » "python using data grippers", "python using java slippers"
"p trinh cho slippery" » "p trinh chao slippery", "p trinh co slippery", "p trinh chat slippery", "n trinh cho slippery", "lap trinh cho slippery", "co trinh cho slippery", "p trinh cho 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.

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