Perhaps you should try some spelling variations:
thiet tach » chiet tach, thien hach, thuat tach
trung tuan » trung thanh, trung tam, tran tuan
truong cua » truong ca, truong quan, truong cao
nhung cong » dung cong, thong cong, hang cong
ho thiet » hoc thiet, hoa thiet, so thiet
cong dan » cong san, cong tan, huong dan
than cap » thanh lap, thanh cac, than cua
khan cap » khan ap, khoan cam, phan cac

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

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