Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
hien nhanh » hien hanh, thien thanh, tien thanh
hanh tranh » canh tranh, hanh trinh, hanh trang
cua phuong » cuu phuong, cuc phuong, luan phuong
hien xanh » hien hanh, chieu xanh, hien khanh
tranh cua » doanh cua, manh cua
tan toan » tap toan, van toan, dan 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 (hien nhanh)) - hanh tranh cua phuong cong ((tan toan) OR (tan tran)) cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) or (hien nhanh)) - hanh tranh cua phuong cong ((tan toan) OR (tan tran)) cao~".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (hien nhanh)) - hanh tranh cua phuong cong ((tan toan) OR (tan tran)) cao*.