Perhaps you should try some spelling variations:
eng xiaoping » deng xiaoping, wang xiaoping, wang xiaobing
tuan china » wuhan china, can china, taiwan china
than china » han china, wuhan china, can china
wang yang » wang yan, wang liang, wang yanling
yang jin » yang jie, yang jun, ying jin
jin data » main data, own data, von data

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: eng xiaoping ((tuan china) OR (than china)) wang yang jin data (hai OR hari) ;~.
• Adding a wildcard symbol may retrieve word variants: eng xiaoping ((tuan china) or (than china)) wang yang jin data (hai or hari) ;*.