Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trung » thanh trung, hanh trang, manh trung
nhung lang » nhanh lang, nhung cong
doi chieu » doc hieu, doi chi, ho chieu
trung cua » truong cua, trung tuan, trung cap
nhung van » phung van, nhung bai, nhung cau
toan tap » toan ban

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 ((nhung lang) or (nhung van)) tinh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh trung cua ((nhung lang) OR (nhung van)) tinh toan tap.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh trung cua ((nhung lang) or (nhung van)) tinh toan tap*.