Perhaps you should try some spelling variations:
hien xanh » hien nhanh, chieu xanh, hien khanh
hien hanh » dieu hanh
hanh sinh » hanh tinh, hanh dinh, hinh sinh
hinh kinh » hinh dinh, trinh kinh, hinh anh
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.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien xanh) or (hien hanh)) - ((hanh sinh) or (hinh kinh)) cua dung cong san toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien hanh)) - ((hanh sinh) OR (hinh kinh)) cua dung cong san toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (hien hanh)) - ((hanh sinh) or (hinh kinh)) cua dung cong san toan cao*.