Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
thong cong » trong cong, tong cong, thong thong
trung cua » truong cua, trung tuan, trung cap
cua thong » cua thuong, cua khong, cua tong
theo yeu » theo tieu, thiet yeu, theo chu
cong dan » cong san, cong tan, huong dan
dan can » dan chan, dan canh, dan ca
can cau » van cau, ban cau, ca cau

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: ((theo yeu) OR (theo chieu)) manh - thanh trung cua thong cong dan can cau~.
• Adding a wildcard symbol may retrieve word variants: ((theo yeu) or (theo chieu)) manh - thanh trung cua thong cong dan can cau*.