Perhaps you should try some spelling variations:
tuan china » wuhan china, can china, taiwan china
wang ning » wang jing, wang liang, wang yong
wang yang » wang yan, wang liang, wang yanling
zhang gan » zhang fan, zhang han, zhang jian
zhang yan » zhang fan, zhang jian, wang yan
li song » li cong, li rong, kim song

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 ning) OR (wang yang)) tuan china ((zhang gan) OR (zhang yan)) li song start ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang ning) or (wang yang)) tuan china ((zhang gan) OR (zhang yan)) li song start ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang ning) or (wang yang)) tuan china ((zhang gan) OR (zhang yan)) li song start ;*.