Perhaps you should try some spelling variations:
yang guang » yang yang, yan guan, yang liang
than china » tuan china, han china, wuhan china
yang study » yang judy, arg study
study long » study among, study land, study loss
tan china » tuan china, can china, dan china
peo yang » pei yang, yao yang, tao yang
long do » long d, long du, longer do
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: (((wang OR wan) yan) OR (yang guang)) ((tan china) OR (than china)) peo yang study long do ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((wang or wan) yan) or (yang guang)) ((tan china) OR (than china)) peo yang study long do ;~".
• Adding a wildcard symbol may retrieve word variants: (((wang or wan) yan) or (yang guang)) ((tan china) OR (than china)) peo yang study long do ;*.