Perhaps you should try some spelling variations:
quan kang » chan kang
yuan kang » yuan wang, yuan chang, chan kang
wing tan » wing ian, liang tan, hong tan
gan guan » yan guan, quan guan, fan guon
kong siu » kong eiu, wong siu, dong sin
dong di » dong sin
guan li » gan li, yuan li, yuan lin

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) OR (dong di)) gan guan li ((quan kang) OR (yuan kang)) kong siu ;~.
• Adding a wildcard symbol may retrieve word variants: ((wing tan) or (dong di)) gan guan li ((quan kang) or (yuan kang)) kong siu ;*.