Perhaps you should try some spelling variations:
thanh trung » thanh tung
trien minh » trien kinh, tien minh, trieu minh
diep ninh » diep tinh, dien hinh, dien kinh
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
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 ((diep ninh) or (trien minh)) - thanh trung cua nhung ((cong dan) or (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((diep ninh) OR (trien minh)) - thanh trung cua nhung ((cong dan) OR (cong san)) toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((diep ninh) or (trien minh)) - thanh trung cua nhung ((cong dan) or (cong san)) toan cau*.