Perhaps you should try some spelling variations:
"python using java grippers" » "python using data grippers", "python using java slippers"
"p trinh tam slippery" » "p trinh tai slippery", "p trinh toan slippery", "p trinh cham slippery", "n trinh tam slippery", "lap trinh tam slippery", "co trinh tam slippery", "p trinh tam 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: (((("p trinh tam slippery") OR ("python using java grippers"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( p trinh tam slippery ) or ( python using java grippers ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("p trinh tam slippery") or ("python using java grippers"))) or ("locating bug code snippets"))*.