Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
trinh toan » tinh toan, thanh toan, trinh han
hanh than » hanh han, hanh nhan, hanh phan
cong cong » cong dong, trong cong, dung cong
ho chieu » hoc thieu, doi chieu, mot chieu
than cua » nhan cua, thai cua, ban cua
toan cau » toan cao, toan ban, toan tap

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 (ho chieu)) tinh - hanh than cua cong cong trinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (ho chieu)) tinh - hanh than cua cong cong trinh toan cau.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (ho chieu)) tinh - hanh than cua cong cong trinh toan cau*.