Perhaps you should try some spelling variations:
"python using java grippers" » "python using data grippers"
"p trinh thi slippers" » "p trinh tai slippers", "p dinh thi slippers", "p trinh tu slippers", "n trinh thi slippers", "lap trinh thi slippers", "co trinh thi slippers", "p trinh thi 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.

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