Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang yang » wang yan
cong van » congo can, duong van, cong sun
gan guan » yan guan, quan guan, fan guon
yang jie » yang jin, yang di, yang jui
kong eiu » tonga eiu
dong di » dong sin
a kong » w kong, tan kong, nan kong
jie a » vie a, lie a, die 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 (dong di)) ((wang yang) OR (((yang yang) OR (gan guan)))) yang jie a kong eiu ;~.
• Adding a wildcard symbol may retrieve word variants: ((cong van) or (dong di)) ((wang yang) or (((yang yang) or (gan guan)))) yang jie a kong eiu ;*.