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