Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trung tuan » trung thanh, tran tuan, truong thanh
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
cong tac » cong ty
toan tap » toan ban
ran cau » van cau, ban cau, can cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - thanh ((trung tuan) or (trung tam)) dung cong tac ((toan tap) or (ran cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh ((trung tuan) OR (trung tam)) dung cong tac ((toan tap) OR (ran cau)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((trung tuan) or (trung tam)) dung cong tac ((toan tap) or (ran cau))*.