Perhaps you should try some spelling variations:
hanh trinh » hanh chinh
dong cong » duong cong, dung cong, dang cong
cua dong » chua dong, cua cong, cua dang
cong tan » cong tac, cong san, cong thanh
tran cau » tran chau, toan cau, ran cau
ho lieu » so lieu, ho kieu, ho chieu
co lieu » cot lieu, co hieu, so lieu

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: ((ho lieu) OR (co lieu)) tinh - ((canh tranh) OR (hanh trinh)) cua dong cong tan tran cau~.
• Adding a wildcard symbol may retrieve word variants: ((ho lieu) or (co lieu)) tinh - ((canh tranh) or (hanh trinh)) cua dong cong tan tran cau*.