Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
thong cong » trong cong, tong cong, thong thong
doan tien » doan thien, doanh tien, toan tien
dung cong » dung trong
trinh he » trinh han, trinh hoa, trinh thi
dan toan » van toan, dan than, manh toan
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: doan tien thinh - hanh trinh he ((dung cong) OR (thong cong)) dan toan tap~.
• Adding a wildcard symbol may retrieve word variants: doan tien thinh - hanh trinh he ((dung cong) or (thong cong)) dan toan tap*.