Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
bien tinh » bi tinh, yen tinh, diep tinh
trung cap » truong cao, trung tam
bang cong » dang cong, bang song, hang cong
cap bang » cao bang, can bang, lap bang
cong dan » cong san, cong tan, huong dan
toan ban » van ban

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