Perhaps you should try some spelling variations:
doanh tien » doanh tren, doanh vien, doanh chien
hanh trinh » canh tranh, hanh chinh
huong cong » luong cong, duong cong, xuong cong
cuong cong » cong cong, luong cong, duong cong
doan tien » doan thien, toan tien, doan dien
trinh thi » trinh tai, dinh thi, trinh tu
dan toan » van toan, dan than, manh 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: ((doan tien) OR (doanh tien)) thinh - hanh trinh thi ((huong cong) OR (cuong cong)) dan toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doan tien) or (doanh tien)) thinh - hanh trinh thi ((huong cong) OR (cuong cong)) dan toan cau~".
• Adding a wildcard symbol may retrieve word variants: ((doan tien) or (doanh tien)) thinh - hanh trinh thi ((huong cong) OR (cuong cong)) dan toan cau*.