Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, thong cong, hang cong
thi chieu » thi chien, thi hieu, thi hien
mot chieu » doi chieu, ho chieu
trinh cua » tinh cua, trinh luat, trinh quan
cua nhung » va nhung
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap

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: ((((thi chieu) OR (mot chieu))) OR (theo chieu)) sang - hanh trinh cua nhung cong tac toan cau~.
• Adding a wildcard symbol may retrieve word variants: ((((thi chieu) or (mot chieu))) or (theo chieu)) sang - hanh trinh cua nhung cong tac toan cau*.