Perhaps you should try some spelling variations:
truong thanh » luong thanh, truong tran, tran thanh
truong xuan » tung xuan
yuan wang » yan wang, yuan kang, yuan chang
done paul » done part, de paul, dyke paul
wang ban » wang yan, wang dan, wang yang
a gene » a genre, a gender, a gentle
ban a » can a, ban _, bab a

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: yuan wang ban a gene ((truong xuan) OR (truong thanh)) done paul ;~.
• Adding a wildcard symbol may retrieve word variants: yuan wang ban a gene ((truong xuan) or (truong thanh)) done paul ;*.