Perhaps you should try some spelling variations:
tran hoang » tran trang
yan liang » yang liang, wang liang, you liang
cong tran » cong van, tung tran
hoang shu » hoang vu, cong shu, hoang sy
jiu cong » li cong
wan yan » wang yan, nan yan, wai yan
yang li » yang lin, yang di, yang yi
yang xi » yang di, yang yi, yang jui

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

• Performing a fuzzy search may retrieve terms with similar spellings: wan yan ((((yang li) or (yang xi))) or (yan liang)) jiu cong tran hoang shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan yan ((((yang li) OR (yang xi))) OR (yan liang)) jiu cong tran hoang shu ;*.