Perhaps you should try some spelling variations:
thiet tach » chiet tach, thien hach, thuat tach
hanh trung » thanh trung, hanh trang, manh trung
trung cap » truong cao, trung tam
cong cong » cong dong, trong cong, dung cong
ho thiet » hoc thiet, hoa thiet, so thiet
cap cong » cac cong, cao cong, tap cong
cong dan » cong san, cong tan, huong dan

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 - hanh trung cap cong cong dan ((toan ban) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho thiet tach - hanh trung cap cong cong dan ((toan ban) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: ho thiet tach - hanh trung cap cong cong dan ((toan ban) or (van ban))*.