Perhaps you should try some spelling variations:
tuan china » wuhan china, can china, taiwan china
lung tang » leung tang, gung thang, lung can
han china » hang china, than china, can china
chen wang » chen yang, chen rong, chen ping
jing wang » jing fang, hong wang, jici wang
ping wang » ping pong, hong wang

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: lung tang ((han china) OR (tuan china)) chen wang ((jing wang) OR (ping wang)) hui ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lung tang ((han china) or (tuan china)) chen wang ((jing wang) OR (ping wang)) hui ;~".
• Adding a wildcard symbol may retrieve word variants: lung tang ((han china) or (tuan china)) chen wang ((jing wang) OR (ping wang)) hui ;*.