Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java grippers" » "python using data grippers", "python using java slippers"
"tu than van slippery" » "tu thanh van slippery", "tu tran van slippery", "tu phan van slippery", "tu nhan van slippery", "nu than van slippery", "tu than van slippers"

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

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