Perhaps you should try some spelling variations:
theo chieu » ho chieu, theo chu, thi chieu
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
cong cong » cong dong, trong cong, dung cong
tinh cua » trinh cua, sinh cua, tinh chat
cong tac » cong ty
tac nhan » tao nhan, cac nhan, dac nhan
nhan cau » nhanh cau, phan cau, nhan sau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (theo tieu)) sang - hanh tinh cua cong cong tac nhan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo tieu)) sang - hanh tinh cua cong cong tac nhan cau.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (theo tieu)) sang - hanh tinh cua cong cong tac nhan cau*.