Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhanh tinh » nhanh thanh, hanh trinh, nhan sinh
quang dung » quang trung, ung dung, cuong dung
hanh tinh » hanh trinh, thanh tinh, canh tinh
ho chieu » theo chieu, hoc thieu, doi chieu
cac phan » cac nhan, cao phan, cap phan
phan cac » nhan cach, phan dau, phan lap

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 - ((hanh tinh) or (nhanh tinh)) quang dung trong cac phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((hanh tinh) OR (nhanh tinh)) quang dung trong cac phan cac*.