Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh toan » thanh hoa, thanh san, tinh toan
toan tuan » tran tuan, toan quan, doan tuan
ho chieu » theo chieu, hoc thieu, doi chieu
dan phan » doan phan, dan chan, van phan
phan cau » phan dau, phan cac, phan tu

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 - thanh toan tuan ((dung cong) OR (dung trong)) dan phan cau~.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh toan tuan ((dung cong) or (dung trong)) dan phan cau*.