Perhaps you should try some spelling variations:
china loren » china lehren, china korea, china more
than china » tuan china, han china, wuhan china
yan than » van thanh, yan zhang, yan clan
yang jie » yang jin, yang di, yang jui
ying jin » yang jin, jing ji
long shu » cong shu, tong shui, long du
wan yan » wang yan, nan yan, wai yan

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: wan yan than china loren ((yang jie) OR (ying jin)) long shu ;~.
• Adding a wildcard symbol may retrieve word variants: wan yan than china loren ((yang jie) or (ying jin)) long shu ;*.