Perhaps you should try some spelling variations:
"do van dat grippers" » "do van soft grippers", "do van dao grippers", "do van dau grippers", "do dan dat grippers", "dao van dat grippers", "vo van dat grippers", "so van dat 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.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("do van dat grippers") OR ("python using java slippers"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( do van dat grippers ) or ( python using java slippers ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("do van dat grippers") or ("python using java slippers"))) or ("locating bug code snippets"))*.