Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"co trinh do grippers" » "co trinh soft grippers", "co tranh do grippers", "cong trinh do grippers", "tao trinh do grippers", "co trinh ky grippers"
"python using java slippers" » "python using data slippers", "python using java 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 do grippers") or ("python using java slippers"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("co trinh do grippers") OR ("python using java slippers"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( co trinh do grippers ) or ( python using java slippers ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("co trinh do grippers") or ("python using java slippers"))) or ("locating bugs code snippets"))*.