Perhaps you should try some spelling variations:
chiet tach » chieu sach
thanh dung » thanh duong, thanh tung, thanh hung
hang cong » dang cong, hang nong, bang cong
dung cua » dung luan, dung cho
cua hang » cua dang, cua nhung, cua cong
chon tao » che tao, cho dao, nhan tao
von tao » von tai, toan tao, vang tao

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) OR (chinh sach)) - thanh dung cua hang cong ((von tao) OR (chon tao)) cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chiet tach) or (chinh sach)) - thanh dung cua hang cong ((von tao) OR (chon tao)) cao~".
• Adding a wildcard symbol may retrieve word variants: ho ((chiet tach) or (chinh sach)) - thanh dung cua hang cong ((von tao) OR (chon tao)) cao*.