Perhaps you should try some spelling variations:
wang liang » wang yang
binh thang » binh thanh, bin zhang, binh thuan
huang yang » huang ying, huang chang, wang yang
kyoung yun » young yun, kyoung yang, hyoung gun
van thanh » tran thanh, phan thanh, lam thanh
hat seit » habe seit, hand seit, hat ein
man » main, many, mean

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: ((van thanh) OR (binh thang)) man hat seit ((wang liang) OR (huang yang)) kyoung yun ;~.
• Adding a wildcard symbol may retrieve word variants: ((van thanh) or (binh thang)) man hat seit ((wang liang) or (huang yang)) kyoung yun ;*.