Perhaps you should try some spelling variations:
chiet tach » chieu sach
thanh tung » thanh cong
cong doan » cong hoan, dong doanh, cong san
ho chiet » ho chieu, ho thiet, hoc thiet
ve nhung » va nhung, tu nhung
cong dan » cong san, cong tan, huong dan
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) OR (thanh tung)) ve nhung ((cong doan) OR (cong dan)) phan dau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - ((thanh trung) OR (thanh tung)) ve nhung ((cong doan) or (cong dan)) phan dau~".
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - ((thanh trung) OR (thanh tung)) ve nhung ((cong doan) or (cong dan)) phan dau*.