Perhaps you should try some spelling variations:
tuan china » wuhan china, can china, taiwan china
china dan » china den, china data, china des
zhong tai » hong tan, zhong zhi
yang jin » yang jie, ying jin, shang jin
yang jun » yang jui, pang jun, yang judy
hong hai » shang hai, dang hai, hong tan
wang » wing, wan, 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 yanling tuan china dan ((yang jin) OR (yang jun)) ((hong hai) OR (zhong tai)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yanling tuan china dan ((yang jin) or (yang jun)) ((hong hai) OR (zhong tai)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yanling tuan china dan ((yang jin) or (yang jun)) ((hong hai) OR (zhong tai)) ;*.