Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
cong dan » cong san, cong tan, cong dong
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh trung cua cong ((cong dan) OR (huong dan)) ((than cap) OR (khan cap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh trung cua cong ((cong dan) OR (huong dan)) ((than cap) or (khan cap))~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh trung cua cong ((cong dan) OR (huong dan)) ((than cap) or (khan cap))*.