Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
doanh chau » doanh chu, doanh nhan, doanh cua
trinh cua » tinh cua, trinh luat, trinh quan
cua thong » cua thuong, cua khong, cua tong
thong tac » thong cac, tuong tac, thong tai
doanh thu » doanh tai
hoc dieu » hoc thieu, hoc hien

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 dieu hanh - hanh trinh cua thong thong tac ((((doanh chau) OR (doanh thu))) OR (dan ca))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc dieu hanh - hanh trinh cua thong thong tac ((((doanh chau) OR (doanh thu))) or (dan ca))~".
• Adding a wildcard symbol may retrieve word variants: hoc dieu hanh - hanh trinh cua thong thong tac ((((doanh chau) OR (doanh thu))) or (dan ca))*.