Perhaps you should try some spelling variations:
trung thanh » truong thanh
chieu xanh » chieu sach, chieu sang, chieu tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
chan cap » khan cap, than cap, cao cap

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 chieu xanh - manh ((trung cua) OR (trung thanh)) nhung ((cong dan) OR (cong tan)) chan cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu xanh - manh ((trung cua) or (trung thanh)) nhung ((cong dan) OR (cong tan)) chan cap~".
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - manh ((trung cua) or (trung thanh)) nhung ((cong dan) OR (cong tan)) chan cap*.