Perhaps you should try some spelling variations:
"mat cua dat grippers" » "mat cua soft grippers", "ma cua dat grippers", "manh cua dat grippers", "mang cua dat grippers", "mat cua vat grippers", "mat cua dan grippers", "mat cua dai grippers"
"python using java slippery" » "python using data slippery", "python using java slippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets", "locating bug code slippers"

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

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