Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trinh » hanh chinh
doi chieu » doc hieu, doi chi, ho chieu
cua nhung » va nhung
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van 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: ((doi chieu) OR (doi khi)) tach - ((canh tranh) OR (hanh trinh)) cua nhung cong tan toan cau~.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (doi khi)) tach - ((canh tranh) or (hanh trinh)) cua nhung cong tan toan cau*.