Perhaps you should try some spelling variations:
thanh trung » thanh tung
thien chinh » tien thinh, thien chien, thi chinh
trung cua » truong cua, trung tuan, trung cap
dien anh » tieng anh, dien dan
cua tong » cua cong, cua dong, cua nong
cong ban » cong bang, cong tan, cong dan
cong san » cong tac
khoan va » doan va, khoa ma, nhan va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thien chinh) or (dien anh)) - thanh trung cua tong ((cong ban) or (cong san)) khoan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien chinh) OR (dien anh)) - thanh trung cua tong ((cong ban) OR (cong san)) khoan va.
• Adding a wildcard symbol may retrieve word variants: hoc ((thien chinh) or (dien anh)) - thanh trung cua tong ((cong ban) or (cong san)) khoan va*.