Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
quang toan » quang tuan, quang tran, quang doan
hoc thieu » toc thieu, hoc hien
tung toan » dung toan, truong toan, trong toan
ban cong » bang cong, van cong, phan cong
cong dan » cong san, cong tan, huong dan
than cau » toan cau, phan cau, thanh chau
than cap » khan cap, thanh lap, thanh cac

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