Perhaps you should try some spelling variations:
truong chung » truong trung
quan truong » quang truong, quan trong, xuan truong
chieu xanh » chieu sach, chieu sang, chieu tinh
hien xanh » hien hanh, hien nhanh, hien khanh
manh tung » manh hung, thanh tung
tung quan » tuong quan, trung quan, dung quan
manh toan » thanh toan, anh tuan, tinh toan
dan toan » van toan, dan than, xuan toan

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 xanh) OR (chieu xanh)) - manh tung quan truong chung ((dan toan) OR (manh toan)) cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) or (chieu xanh)) - manh tung quan truong chung ((dan toan) OR (manh toan)) cao~".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (chieu xanh)) - manh tung quan truong chung ((dan toan) OR (manh toan)) cao*.