Perhaps you should try some spelling variations:
tran hoang » tran trang
you liang » you xian, you liangzhi
yuan wang » yan wang, yuan kang, yuan chang
cong tran » cong van, tung tran
yang jie » yang jin, yang di, yang xi
yang jui » yang judy, yang di, yang xi
hoang sy » hoang vu
li cong » li rong, li song, jiu cong

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang yan ((((yang jie) OR (yang jui))) or (((yuan wang) or (you liang)))) li cong tran hoang sy ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan ((((yang jie) OR (yang jui))) OR (((yuan wang) OR (you liang)))) li cong tran hoang sy ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan ((((yang jie) OR (yang jui))) or (((yuan wang) or (you liang)))) li cong tran hoang sy ;*".