Perhaps you should try some spelling variations:
"locating bug code slippers" » "locating bug code snippets", "locating bung code slippers", "locating bugs code slippers"
"python using java grippers" » "python using data grippers"
"co trinh tu slippery" » "co tranh tu slippery", "cong trinh tu slippery", "tao trinh tu slippery", "co trinh ky slippery", "co trinh do slippery"

You may be able to get more results by adjusting your search query.

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