Perhaps you should try some spelling variations:
tuong cong » truong cong, trong cong, tong cong
hien xanh » hien nhanh, chieu xanh, hien khanh
hien hanh » dieu hanh
tranh va » tranh van, trang va, trinh va
va tuong » va thuong, va thong, xa truong
cong san » cong tac
san quan » van quan, ban quan, dan quan

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)) - canh tranh va tuong cong san quan he~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien hanh)) - canh tranh va tuong cong san quan he.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (hien hanh)) - canh tranh va tuong cong san quan he*.