Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java slippers" » "python using data slippers", "python using java grippers"
"toan va lua slippery" » "doan va lua slippery", "tran van lua slippery", "toan ban lua slippery", "toan va luat slippery", "toan ca lua slippery", "toan vi lua slippery"

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

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