Perhaps you should try some spelling variations:
china hall » china fall, china hello, china small
tao china » mao china, lao china, dan china
yang july » yang judy, yang jun
cong van » congo can, duong van, cong sun
yang jui » yang judy, yang di, yang yi
yang xi » yang di, yang yi
wang » wing, lang

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 tao china hall ((((yang xi) OR (yang jui))) OR (yang july)) (wang OR wan) hua ;~.
• Adding a wildcard symbol may retrieve word variants: cong van tao china hall ((((yang xi) or (yang jui))) or (yang july)) (wang or wan) hua ;*.