Perhaps you should try some spelling variations:
wang kang » wang yang, wang liang, wang yan
yang yang » wang yang, wang yan
tan yang » tan ying, tan yong, tao yang
dan yang » daun yang, wang yang, adam yang
ying hai » ying hooi, dang hai, hong hai
han hua » wang hua, tuan hua
tan hua » tuan hua, wang hua, tan chia

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

• If you are trying to use Boolean operators, they must be ALL CAPS: wang kang ((han hua) OR (tan hua)) ((yang yang) OR (((tan yang) OR (dan yang)))) li ying hai ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang kang ((han hua) or (tan hua)) ((yang yang) or (((tan yang) OR (dan yang)))) li ying hai ;~".
• Adding a wildcard symbol may retrieve word variants: wang kang ((han hua) or (tan hua)) ((yang yang) or (((tan yang) OR (dan yang)))) li ying hai ;*.