Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
thanh trung » thanh tung
theo chieu » ho chieu, theo chu, thi chieu
phuong tan » phuong tran, phuong tay, phuong lan
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
tan van » tran van, tang van, luan van

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) OR (theo tieu)) tinh - thanh trung cua nhung phuong tan van ban~".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) OR (theo tieu)) tinh - thanh trung cua nhung phuong tan van ban*.