Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
trung cua » truong cua, trung tuan, trung cap
nhan tung » nhan trung, nhan tuong, nhan tong
tang cua » mang cua, hang cua, tang luan
tung dan » dung dan, huong dan, trung dai
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man

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 ((trung cua) or (tang cua)) nhan tung dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh ((trung cua) OR (tang cua)) nhan tung dan than ban.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh ((trung cua) or (tang cua)) nhan tung dan than ban*.