Perhaps you should try some spelling variations:
tuan china » wuhan china, can china, taiwan china
han china » hang china, than china, can china
weng fang » jing fang
jing yang » jing fang, ying yang, wang yang
wen wang » wei wang, chen wang, men want
yang hui » yang jui, wang hui, yang muxi
gung » agung, guang, gang

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: gung thang ((han china) OR (tuan china)) ((wen wang) OR (weng fang)) jing yang hui ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "gung thang ((han china) or (tuan china)) ((wen wang) OR (weng fang)) jing yang hui ;~".
• Adding a wildcard symbol may retrieve word variants: gung thang ((han china) or (tuan china)) ((wen wang) OR (weng fang)) jing yang hui ;*.