Perhaps you should try some spelling variations:
wang yong » wang yang, wang hyoung, wang yan
juan rene » juan meng, juan rana
zhang zhi » zhong zhi, wang zhi, zhang wei
yang tan » yang fan, yang dean, yang yang
hong hai » shang hai, zhong tai, dang hai
yong ka » ong ka, yang ka, yong kim
ka juan » san juan, ka chuan, roa juan

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 yong ka juan rene ((yang tan) OR (yang (dean OR jean))) ((zhang zhi) OR (hong hai)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang yong ka juan rene ((yang tan) or (yang (dean or jean))) ((zhang zhi) or (hong hai)) ;*.