Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
luat chung » luan chung, luat thuong, cua chung
chung cong » nhung cong, chong cong, phung cong
phong toan » phong thanh, phong trao, phong van
hien tach » thien hach, chiet tach, vien bach
dung toan » dung doanh, dung thang, dung 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 tach - hanh trinh luat chung cong ((phong toan) OR (dung toan)) cao~.
• Adding a wildcard symbol may retrieve word variants: hoc hien tach - hanh trinh luat chung cong ((phong toan) or (dung toan)) cao*.