Perhaps you should try some spelling variations:
thanh trung » thanh tung
thiet tach » chiet tach, thuat tach
thien hach » thien thanh, hien hanh
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
phan cau » phan dau, phan cac, phan tu

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) or (thien hach)) - thanh trung cua nhung ((cong dan) OR (cong san)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((thiet tach) OR (thien hach)) - thanh trung cua nhung ((cong dan) OR (cong san)) phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((thiet tach) or (thien hach)) - thanh trung cua nhung ((cong dan) OR (cong san)) phan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((thiet tach) or (thien hach)) - thanh trung cua nhung ((cong dan) OR (cong san)) phan cau*.