Perhaps you should try some spelling variations:
doanh luan » doanh nhan
hanh trinh » canh tranh, hanh chinh
thong cong » trong cong, tong cong, thong thong
doan tran » doan trang, doan tuan, hoan tran
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
trinh he » trinh han, trinh hoa, trinh thi
toan ban » van ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((doan tran) or (doanh luan)) thanh - hanh trinh he thong cong manh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doan tran) OR (doanh luan)) thanh - hanh trinh he thong cong manh toan ban*.