Perhaps you should try some spelling variations:
doanh luan » doanh nhan
hien xanh » hien hanh, hien nhanh, chieu xanh
hang cong » dang cong, hang nong, bang cong
manh cua » doanh cua, ban cua
cong tan » cong tac, cong san, cong thanh
tan san » tai san, tan van, han san
san cau » van cau, ban cau, can cau

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 - canh ((doanh luan) or (manh cua)) hang cong tan san cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - canh ((doanh luan) OR (manh cua)) hang cong tan san cau.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - canh ((doanh luan) or (manh cua)) hang cong tan san cau*.