Perhaps you should try some spelling variations:
doanh tien » doanh tren, doanh vien, doanh chien
tien thanh » tien thinh, tran thanh, den thanh
hanh trinh » canh tranh, hanh chinh
trinh han » trinh quan
han nhung » hanh nhung, hon nhung, ban nhung
cong dan » cong san, cong tan, cong tac
toan tap » toan ban

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: doanh tien thanh - hanh trinh han nhung ((((cong dan) OR (cong dong))) OR (huong dan)) toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doanh tien thanh - hanh trinh han nhung ((((cong dan) OR (cong dong))) or (huong dan)) toan tap~".
• Adding a wildcard symbol may retrieve word variants: doanh tien thanh - hanh trinh han nhung ((((cong dan) OR (cong dong))) or (huong dan)) toan tap*.