Perhaps you should try some spelling variations:
yuan wang » yan wang, yuan chang, qian wang
yuan kang » yuan chang, chan kang, yuan ming
yang jong » yang jing, hong jong, yang yang
wing yan » wang yan, wing ian, wang yang
wing tan » wing ian, liang tan, hong tan
cong van » congo can, duong van, cong sun
yuan kai » yuan fei, tan kai, yuan hui
jong min » gong min, song min, song ming

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)) cong van ((((yuan kang) OR (yuan wang))) OR (yuan kai)) yang jong min ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wing yan) or (wing tan)) cong van ((((yuan kang) OR (yuan wang))) or (yuan kai)) yang jong min ;~".
• Adding a wildcard symbol may retrieve word variants: ((wing yan) or (wing tan)) cong van ((((yuan kang) OR (yuan wang))) or (yuan kai)) yang jong min ;*.