Perhaps you should try some spelling variations:
zeng doug » jeng dong, zeng douglas
dong yang » dong hoang, wang yang, yang yang
cong van » congo can, duong van, cong sun
dann bin » dong bin
li zeng » li zhang
doug di » dong di
wei li » wei ji
y la » a la, _ la
u a » up a, eu a, uk a

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: ((cong van) OR (((dann bin) OR (dong yang)))) ((u a) OR (y la)) wei li zeng doug di ;~.
• Adding a wildcard symbol may retrieve word variants: ((cong van) or (((dann bin) or (dong yang)))) ((u a) or (y la)) wei li zeng doug di ;*.