Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh toan » tinh toan, thanh toan, trinh han
nhung cong » thong cong, hang cong, nhung don
doan tien » doan thien, doanh tien, toan tien
dung cong » dung trong
san toan » van toan, dan toan, 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 thinh - hanh trinh toan ((nhung cong) OR (dung cong)) san toan cau~.
• Adding a wildcard symbol may retrieve word variants: doan tien thinh - hanh trinh toan ((nhung cong) or (dung cong)) san toan cau*.