Perhaps you should try some spelling variations:
hanh trang » thanh trung, hanh trinh, minh trang
cho chinh » chon chinh, che chinh, cuoc chinh
dang cong » dung cong
thanh mau » thanh san, thanh hai, thanh ngu
cong tac » cong ty
hanh mau » anh mau, hanh ma, hanh may
va dang » van dang, va nang, va lang

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: cho chinh sach - ((hanh trang) OR (canh tranh)) va dang cong tac ((thanh mau) OR (hanh mau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cho chinh sach - ((hanh trang) OR (canh tranh)) va dang cong tac ((thanh mau) or (hanh mau))~".
• Adding a wildcard symbol may retrieve word variants: cho chinh sach - ((hanh trang) OR (canh tranh)) va dang cong tac ((thanh mau) or (hanh mau))*.