Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
doc dieu » doc hieu, hoc dieu, soc dieu
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan cau » toan cao, toan tap, toan tai
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: doc dieu hanh - thanh trung cua nhung ((cong dan) or (cong san)) ((toan cau) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc dieu hanh - thanh trung cua nhung ((cong dan) OR (cong san)) ((toan cau) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc dieu hanh - thanh trung cua nhung ((cong dan) or (cong san)) ((toan cau) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: doc dieu hanh - thanh trung cua nhung ((cong dan) or (cong san)) ((toan cau) OR (toan ban))*.