Perhaps you should try some spelling variations:
"ba quan doan grippers" » "ba quan soft grippers", "ba quan hoang grippers", "ba chuan doan grippers", "ba chan doan grippers", "ban quan doan grippers", "bao quan doan grippers", "boa quan doan grippers"
"python using java slippers" » "python using data slippers", "python using java 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.

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