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