Perhaps you should try some spelling variations:
trung thanh » truong thanh
chieu xanh » chieu sach, chieu sang, chieu tinh
truong cua » truong ca, truong quan, truong cao
hoc chieu » hoc thieu, ho chieu, hoc hien
bang cong » dang cong, bang song, hang cong
thanh cac » hanh cac, thanh bac, thanh ca
cong tan » cong tac, cong san, cong thanh
than cap » khan cap, thanh lap, than cua

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