Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
hanh trinh » canh tranh, hanh chinh
hien xanh » hien hanh, chieu xanh, hien khanh
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cao » toan ban, toan tap

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)) - ((minh hoang) OR (hanh trinh)) cua dung cong san toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) OR (hien nhanh)) - ((minh hoang) or (hanh trinh)) cua dung cong san toan cao~".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) OR (hien nhanh)) - ((minh hoang) or (hanh trinh)) cua dung cong san toan cao*.