Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
tuan thong » tran thong, tuan phong, xuan thong
hoc thieu » toc thieu, hoc hien
thanh tra » thanh toan, thanh hoa
cong san » cong tac
than cau » toan cau, than cap, thanh chau
phan cau » phan dau, phan cac, phan tu
toan » tran

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 - thanh tra ((tuan thong) OR (toan thong)) cong san ((than cau) OR (phan cau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh tra ((tuan thong) OR (toan thong)) cong san ((than cau) or (phan cau))~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh tra ((tuan thong) OR (toan thong)) cong san ((than cau) or (phan cau))*.