Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
hanh nang » anh nang, ganh nang, hanh mang
nang quan » ban quan, nang suat
quan dung » quang dung, quan duong, qua dung
trong tac » trong cac, tuong tac, trong tuc
trong tan » trong quan, trong cac, trong ca

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - hanh nang quan dung ((trong tac) or (trong tan)) van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh nang quan dung ((trong tac) OR (trong tan)) van ban*.