Perhaps you should try some spelling variations:
"dan luan dat grippers" » "dan luan soft grippers", "doanh luan dat grippers", "dung luan dat grippers", "tang luan dat grippers", "dan luat dat grippers", "dan luan dac grippers", "dan luan day 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: (((("dan luan dat grippers") or ("python using java slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan luan dat grippers") OR ("python using java slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan luan dat grippers ) or ( python using java slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan luan dat grippers") or ("python using java slippers"))) or ("locating bug code snippets"))*.