Perhaps you should try some spelling variations:
peng liang » wang liang, yang liang, deng ziliang
yan liang » yang liang, wang liang, you liang
van hoang » tran hoang, vu hoang, anh hoang
hoang shu » hoang vu, cong shu, hoang sy
yang lin » yang jin, wang lin, yang li
rong van » cong van, trang van, duong van
wan yan » wang yan, nan yan, wai yan

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: wan yan ((yang lin) OR (((peng liang) OR (yan liang)))) yi rong van hoang shu ;~.
• Adding a wildcard symbol may retrieve word variants: wan yan ((yang lin) or (((peng liang) or (yan liang)))) yi rong van hoang shu ;*.