Perhaps you should try some spelling variations:
"python using java grippers" » "python using data grippers", "python using java slippers"
"lan van lua slippery" » "luan van lua slippery", "lang van lua slippery", "tan van lua slippery", "lan van luan slippery", "lan van lu slippery", "lan van luc slippery", "lan van lua 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: (((("lan van lua slippery") or ("python using java grippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lan van lua slippery") OR ("python using java grippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lan van lua slippery ) or ( python using java grippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lan van lua slippery") or ("python using java grippers"))) or ("locating bug code snippets"))*.