Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
trung tuan » trung thanh, trung tam, tran tuan
doi chieu » doc hieu, doi chi, ho chieu
tong cong » cong cong, dung cong, dang cong
dan phan » doan phan, dan chan, van phan
phan cau » phan dau, phan cac, phan tu

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: ((doi chieu) OR (theo chieu)) xanh - thanh trung tuan ((tong cong) OR (trong cong)) dan phan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (theo chieu)) xanh - thanh trung tuan ((tong cong) OR (trong cong)) dan phan cau~".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (theo chieu)) xanh - thanh trung tuan ((tong cong) OR (trong cong)) dan phan cau*.