Perhaps you should try some spelling variations:
than china » tuan china, han china, wuhan china
gain yang » dan yang, daun yang, tan yang
jia zhang » jie zhang, jia zhangke, xiao zhang
zhang hai » zhang dai, shang hai, zhang han
wing tan » wing ian, liang tan, hong tan
tuan hua » tuan vu, yuan hui
yang jia » yang jie, yang jin, yang jing
tan hua » wang 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: wing tan ((((tan hua) OR (tuan hua))) OR (than china)) gain yang jia zhang hai ;~.
• Adding a wildcard symbol may retrieve word variants: wing tan ((((tan hua) or (tuan hua))) or (than china)) gain yang jia zhang hai ;*.