Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
thong cong » trong cong, tong cong, thong thong
doanh chau » doanh chu, doanh nhan, doanh thu
trang cua » tranh cua, tang cua, trung cua
cua thong » cua thuong, cua khong, cua tong
hoc dieu » hoc thieu, hoc hien
cong tac » cong ty
doan cap » doanh cao, dan ca, toan cao

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 trang cua thong cong tac ((doanh chau) OR (doan cap))~.
• Adding a wildcard symbol may retrieve word variants: hoc dieu hanh - hanh trang cua thong cong tac ((doanh chau) or (doan cap))*.