Perhaps you should try some spelling variations:
thanh trung » thanh tung
hieu nganh » vien nganh, hiem ngan, nghiep nganh
hieu manh » chieu xanh, dieu hanh, hien hanh
trung cua » truong cua, trung tuan, trung cap
cua tong » cua cong, cua dong, cua nong
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
than cap » khan cap, thanh lap, thanh cac

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

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