Perhaps you should try some spelling variations:
doanh tien » doanh tren, doanh vien, doanh chien
hanh trinh » canh tranh, hanh chinh
trinh theo » trich theo, tinh theo, trinh thao
theo nhung » theo phuong, theo chuong, thi nhung
doan tien » doan thien, toan tien, doan dien
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
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: ((doan tien) OR (doanh tien)) thanh - hanh trinh theo nhung ((cong dan) OR (cong tan)) toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doan tien) or (doanh tien)) thanh - hanh trinh theo nhung ((cong dan) OR (cong tan)) toan cau~".
• Adding a wildcard symbol may retrieve word variants: ((doan tien) or (doanh tien)) thanh - hanh trinh theo nhung ((cong dan) OR (cong tan)) toan cau*.