Perhaps you should try some spelling variations:
challenges tin » challenges time, challenges third, challenges 1
3 current » 3 concurrent
lang yan » wang yan, wang yang, zhang yan
tin hong » tan hong, kia hong, thi hong
hong hai » shang hai, zhong tai, dang hai
yang xi » yang di, yang yi, yang jui
ng y » ng _, g y, na y

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((lang yan) or (yang xi))ng y ((2 current) or (3 current)) challenges tin hong hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((lang yan) OR (yang xi))ng y ((2 current) OR (3 current)) challenges tin hong hai ;.
• Adding a wildcard symbol may retrieve word variants: ((lang yan) or (yang xi))ng y ((2 current) or (3 current)) challenges tin hong hai ;*.