Perhaps you should try some spelling variations:
doanh hoan » doanh doanh, doanh khoa, doanh nhan
hien xanh » hien hanh, hien nhanh, chieu xanh
cong cong » cong dong, trong cong, dung cong
cong tinh » cong trinh, cong vinh, long tinh
hoan cua » hoa cua, toan cua, han cua
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien xanh) or (dieu hanh)) - doanh hoan cua cong cong tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (dieu hanh)) - doanh hoan cua cong cong tinh toan cau*.