Perhaps you should try some spelling variations:
quan kang » yuan kang, chan kang
kang wong » kang young
wong shiu » wong siu, cong shu, song shin
wing yan » wang yan, wing ian, wang yang
wing tan » wing ian, liang tan, hong tan
dong di » dong sin
yang li » yang lin, yang di, yang xi
yan li » yuan li, gan li, tan li

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 yan) OR (wing tan))) OR (dong di)) nan ((yan li) OR (yang li)) quan kang wong shiu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((wing yan) or (wing tan))) or (dong di)) nan ((yan li) OR (yang li)) quan kang wong shiu ;~".
• Adding a wildcard symbol may retrieve word variants: ((((wing yan) or (wing tan))) or (dong di)) nan ((yan li) OR (yang li)) quan kang wong shiu ;*.