Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
manh tung » manh hung, thanh tung
trong dan » trong dang, trong san, trong ban
trong tan » trong quan, trong cac, trong ca
tung tam » trung tam, vung tam, dung tam
tam dong » tam duong, tac dong, lam dong
phan cau » phan dau, phan cac, phan tu

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 - manh tung tam dong ((trong dan) or (trong tan)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - manh tung tam dong ((trong dan) OR (trong tan)) phan cau*.