Perhaps you should try some spelling variations:
thanh trung » thanh tung
chiet tach » chieu sach
trung cua » truong cua, trung tuan, trung cap
ho chiet » ho chieu, ho thiet, hoc thiet
cua tong » cua cong, cua dong, cua nong
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
phan cau » phan cac, phan tu, phan lap
phan dau » phan tu, hang dau

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

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