Perhaps you should try some spelling variations:
yuan kang » yuan wang, yuan chang, chan kang
juan rene » juan meng, juan rana
yang yao » yang yang, wang yan, yang yi
hua rene » hua ren
hong hai » shang hai, zhong tai, dang hai
yan tin » yuan ting, yang jin, yang lin
yan ka » yang ka, yuan kai

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: wan ((yan ka) OR (yang yao)) ((hua rene) OR (juan rene)) ((yan tin) OR (yuan kang)) hong hai ;~.
• Adding a wildcard symbol may retrieve word variants: wan ((yan ka) or (yang yao)) ((hua rene) or (juan rene)) ((yan tin) or (yuan kang)) hong hai ;*.