Perhaps you should try some spelling variations:
chiet tach » chieu sach
thanh tung » thanh cong
ho chiet » ho chieu, ho thiet, hoc thiet
tung cua » trung cua, tuong cua, dung cua
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chiet tach - thanh tung cua dung ((cong dan) or (cong tan)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - thanh tung cua dung ((cong dan) OR (cong tan)) toan cau.
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - thanh tung cua dung ((cong dan) or (cong tan)) toan cau*.