Perhaps you should try some spelling variations:
gang minh » sang minh, kang minah, anh minh
yang jui » yang judy, yang di, yang yi
yang jun » pang jun, yang jin, yang judy
cong van » congo can, duong van, cong sun
nan yan » nan ya, wang yan, qian yan
qian yi » qian yan
yang xi » yang di, yang yi
i gang » ii gang, li gang, yi gang

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: ((nan yan) OR (qian yi)) ((((yang xi) OR (yang jui))) OR (yang jun)) i gang minh cong van ;~.
• Adding a wildcard symbol may retrieve word variants: ((nan yan) or (qian yi)) ((((yang xi) or (yang jui))) or (yang jun)) i gang minh cong van ;*.