Perhaps you should try some spelling variations:
tuan china » wuhan china, can china, taiwan china
dong yang » dong hoang, wang yang, yang yang
tan chia » than china, can china, dan china
rent yan » ren yan, rent a
jiu cong » li cong
cong seo » hong seo, cong shu, cong sun
yan jiu » yang jie, yang jin, pang jiu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: dong yang ((tan chia) or (tuan china)) rent yan jiu cong seo ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong yang ((tan chia) OR (tuan china)) rent yan jiu cong seo ;.
• Adding a wildcard symbol may retrieve word variants: dong yang ((tan chia) or (tuan china)) rent yan jiu cong seo ;*.