Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh doanh » hang doanh, chinh doanh, doanh doanh
hoc thieu » toc thieu, hoc hien
doanh cua » doanh luan
cua nhung » va nhung
tran chau » tranh chap, tran huu
cong tac » cong ty
tran cau » toan cau, ran cau, tra cau

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 thieu xanh - hanh doanh cua nhung ((cong tac) OR (cong san)) ((tran cau) OR (tran chau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh doanh cua nhung ((cong tac) or (cong san)) ((tran cau) OR (tran chau))~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh doanh cua nhung ((cong tac) or (cong san)) ((tran cau) OR (tran chau))*.