Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
nhung cong » dung cong, thong cong, hang cong
theo chau » theo chieu, theo phap, theo cap
trung cua » truong cua, trung cap, dung cua
theo chu » theo chieu, cho chu, chao chu
cong tac » cong ty
tac van » tac vang, cac van, tac va

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 chau) OR (theo chu)) tinh - hanh ((trung cua) OR (trung tuan)) nhung cong tac van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chau) OR (theo chu)) tinh - hanh ((trung cua) or (trung tuan)) nhung cong tac van ban~".
• Adding a wildcard symbol may retrieve word variants: ((theo chau) OR (theo chu)) tinh - hanh ((trung cua) or (trung tuan)) nhung cong tac van ban*.