Perhaps you should try some spelling variations:
tuan thuong » than thuong, toan thuong, thanh thuong
thanh tran » thanh trang, thanh toan, thanh tra
thuong han » thuong mai, thuong va, thuong gap
hieu lang » chieu sang, hieu quang, nhieu tang
hieu quan » hieu qua, lieu quan, thien quan
tran tuan » tran xuan, tran quang, tran thanh
han van » phan van, nhan van, hanh van
ban cau » bang cau, ban can, van cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: nho ((hieu lang) or (hieu quan)) - thanh tran tuan thuong han van ban cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nho ((hieu lang) OR (hieu quan)) - thanh tran tuan thuong han van ban cau*.