Perhaps you should try some spelling variations:
"python using java grippers" » "python using data grippers", "python using java slippers"
"n trinh cham slippery" » "n trinh chat slippery", "n trinh chao slippery", "n trinh han slippery", "p trinh cham slippery", "anh trinh cham slippery", "dan trinh cham slippery", "n trinh cham 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.

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