Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
thong cong » trong cong, tong cong, thong thong
hien xanh » hien nhanh, chieu xanh, hien khanh
hien hanh » dieu hanh
trinh ban » trinh han, trinh san, trinh dan
ban thong » ban trong, ban tuong, ban tong
dan toan » dan than, manh toan, xuan toan
van toan » van tuan, van tan, van thanh

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: hoc ((hien xanh) OR (hien hanh)) - hanh trinh ban thong cong ((dan toan) OR (van toan)) tap~.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (hien hanh)) - hanh trinh ban thong cong ((dan toan) or (van toan)) tap*.