Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung toan » truong toan, trung tuan, trung tran
toan cong » tran cong, toan thong, doan cuong
cong cong » cong dong, trong cong, dung cong
tien anh » tieng anh, tien manh, tien thanh
dien anh » tieng anh, dien dan
cong san » cong tac
than cap » khan cap, thanh lap, thanh cac
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((tien anh) OR (dien anh)) - thanh trung toan cong cong san ((than cap) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((tien anh) OR (dien anh)) - thanh trung toan cong cong san ((than cap) OR (toan cau))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((tien anh) OR (dien anh)) - thanh trung toan cong cong san ((than cap) or (toan cau))*".