Perhaps you should try some spelling variations:
tuan china » wuhan china, can china, taiwan china
china gain » china grain, china main, china going
hyoung tan » hyoung gun, young man, hong tan
wang kang » wang yang, wang liang, wang yan
kang tuan » kang susan, kang tae, anh tuan
yang min » yang mind, tang min, yang lin
yang jin » yang jie, yang jun, ying jin

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 kang tuan china gain ((yang min) OR (yang jin)) hyoung tan ;~.
• Adding a wildcard symbol may retrieve word variants: wang kang tuan china gain ((yang min) or (yang jin)) hyoung tan ;*.