Perhaps you should try some spelling variations:
thanh trung » thanh tung
hieu manh » chieu xanh, hieu nganh, dieu hanh
trung cua » truong cua, trung tuan, trung cap
toc hieu » toc thieu, doc hieu, hoc thieu
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: toc hieu manh - thanh trung cua cong ((cong dan) or (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc hieu manh - thanh trung cua cong ((cong dan) OR (cong san)) toan cau.
• Adding a wildcard symbol may retrieve word variants: toc hieu manh - thanh trung cua cong ((cong dan) or (cong san)) toan cau*.