Perhaps you should try some spelling variations:
hien xanh » hien hanh, hien nhanh, chieu xanh
hanh hang » thanh hang, hang hang, hanh han
va duong » van duong, va tuong, va dong
va huong » va thuong, va phuong, va tuong
cong san » cong tac
than cap » thanh lap, thanh cac, than cua
khan cap » khan ap, khoan cam, phan cac

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 - hanh hang ((va duong) or (va huong)) cong san ((than cap) or (khan cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh hang ((va duong) OR (va huong)) cong san ((than cap) OR (khan cap)).
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh hang ((va duong) or (va huong)) cong san ((than cap) or (khan cap))*.