Perhaps you should try some spelling variations:
tuan china » wuhan china, can china, taiwan china
zhang yan » zhang fan, zhang jian, wang yan
zhang xin » zhang jian, zhang ming, zhang fan
song thin » song shin, song jin, song min
li zhang » _ zhang
xin song » jin song, xin tong, kim song
tan hua » tuan hua, tan chia, tan puay

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