Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trung » thanh trung, hanh trang, manh trung
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, thong thong, phong chong
doi chieu » doc hieu, doi chi, ho chieu
trung cua » truong cua, trung tuan, trung cap
tong cong » trong cong, cong cong, dung cong
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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