Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh dung » thanh duong, thanh tung, thanh hung
dung cua » dung luan, dung cho
ban cong » bang cong, phan cong, ban huong
van cong » van dong, van phong, phan cong
van toan » van tuan, van tan, van thanh
toan cau » toan cao, toan ban, toan tap

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 ((chieu sach) OR (trieu tinh)) - thanh dung cua ((ban cong) OR (van cong)) van toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (trieu tinh)) - thanh dung cua ((ban cong) OR (van cong)) van toan cau~".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (trieu tinh)) - thanh dung cua ((ban cong) OR (van cong)) van toan cau*.