Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
truong cao » truong dai
hoc chieu » hoc thieu, ho chieu, hoc hien
truong ca » truong va, trong ca, truong dai
thanh cac » hanh cac, thanh bac, thanh ca
cong ban » cong bang, cong tan, cong dan
cong san » cong tac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu xanh - thanh ((truong ca) OR (truong cao)) nhung ((cong ban) or (cong san)) thanh cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - thanh ((truong ca) OR (truong cao)) nhung ((cong ban) OR (cong san)) thanh cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu xanh - thanh ((truong ca) OR (truong cao)) nhung ((cong ban) or (cong san)) thanh cac".
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - thanh ((truong ca) OR (truong cao)) nhung ((cong ban) or (cong san)) thanh cac*.