Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
hanh trung » thanh trung, hanh trang, manh trung
trung tai » truong tai, trung tam, trung dai
tai trong » tai truong, tai trung, tai cong
ho chieu » hoc thieu, doi chieu, mot chieu
cong san » cong tac
khan cap » khan ap, khoan cam, phan cac
than cap » thanh lap, thanh cac, than cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (theo chieu)) tinh - hanh trung tai trong cong san ((khan cap) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) tinh - hanh trung tai trong cong san ((khan cap) OR (than cap)).
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chieu)) tinh - hanh trung tai trong cong san ((khan cap) or (than cap))*.