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