Perhaps you should try some spelling variations:
yuan wang » yuan kang, yuan chang, qian wang
amin hong » min hong, among hong, tin hong
yan wang » yang yang, qian wang, yan liang
tuan hua » tan hua, tuan vu, yuan hui
tan yang » dan yang, tan ying, tao yang
tan yong » tan hong, tan kong, tan ying
hong hai » shang hai, zhong tai, dang hai

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: ((((yuan wang) OR (yan wang))) OR (wang yan)) tuan hua ((tan yang) OR (tan yong)) amin hong hai ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((yuan wang) OR (yan wang))) or (wang yan)) tuan hua ((tan yang) or (tan yong)) amin hong hai ;~".
• Adding a wildcard symbol may retrieve word variants: ((((yuan wang) OR (yan wang))) or (wang yan)) tuan hua ((tan yang) or (tan yong)) amin hong hai ;*.