Perhaps you should try some spelling variations:
thanh loan » thanh toan, thanh hoang, thanh hoa
thanh tuan » thanh toan, thanh xuan, thanh thanh
nhung cong » dung cong, thong cong, hang cong
van nhung » van nhuong, va nhung, van hung
hien anh » hien hanh, thien anh, dien anh
cong san » cong tac
chan cao » chan cho, chat cao, toan cao
chay cao » cay cao, chat cao, nha cao

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: hoc hien anh - ((thanh loan) OR (thanh tuan)) van nhung cong san ((chan cao) OR (chay cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien anh - ((thanh loan) or (thanh tuan)) van nhung cong san ((chan cao) OR (chay cao))~".
• Adding a wildcard symbol may retrieve word variants: hoc hien anh - ((thanh loan) or (thanh tuan)) van nhung cong san ((chan cao) OR (chay cao))*.