Perhaps you should try some spelling variations:
wang kang » wang yang, wang liang, wang yan
yang yang » wang yang, wang yan
tuan hua » tan hua, tuan vu, yuan hui
tan ying » fan ying, tan yang, tan yong
ran ying » fan ying, jin ying, gao ying
ying hai » ying hooi, dang hai, hong hai
han hua » tan hua, wang hua

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang kang ((han hua) or (tuan hua)) ((yang yang) or (((tan ying) OR (ran ying)))) li ying hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang kang ((han hua) OR (tuan hua)) ((yang yang) OR (((tan ying) OR (ran ying)))) li ying hai ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang kang ((han hua) or (tuan hua)) ((yang yang) or (((tan ying) OR (ran ying)))) li ying hai ;*".