Perhaps you should try some spelling variations:
than china » tuan china, han china, wuhan china
wang yong » wang yang, wang hyoung, wang yan
yong than » long thanh, yong phang
wei wang » wei yang, wen wang, wei shang
pei yang » wei yang, pei yun, yi yang
hui yang » hui ying, du yang, h yang
di cong » li cong, jiu cong

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 yong than china ((wei wang) OR (((pei yang) OR (hui yang)))) di cong shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yong than china ((wei wang) or (((pei yang) OR (hui yang)))) di cong shu ;~".
• Adding a wildcard symbol may retrieve word variants: wang yong than china ((wei wang) or (((pei yang) OR (hui yang)))) di cong shu ;*.