Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
doanh chua » doanh cua, doanh chu, doanh chung
cong thanh » dong thanh, cong trinh, cong tan
hoc chieu » ho chieu, hoc hien, hoc dieu
hoc thieu » toc thieu, hoc hien
chua bang » chu bang, chua nang, chua xang
cong tuan » cong tan, cong luan, cong quang
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc chieu) or (hoc thieu)) xanh - hanh doanh chua bang ((cong tuan) OR (cong thanh)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (hoc thieu)) xanh - hanh doanh chua bang ((cong tuan) OR (cong thanh)) phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) or (hoc thieu)) xanh - hanh doanh chua bang ((cong tuan) OR (cong thanh)) phan cau".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) or (hoc thieu)) xanh - hanh doanh chua bang ((cong tuan) OR (cong thanh)) phan cau*.