Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, nhung don
doi chieu » doc hieu, doi chi, ho chieu
hang cong » dang cong, hang nong, bang cong
hanh tam » thanh tam, nhanh tam, hanh tram
tam tuan » tam than, ta tuan, tai tuan
dan than » dan chan, ban than, van than

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh tam tuan ((nhung cong) OR (hang cong)) ((xuan toan) OR (dan than)) ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - hanh tam tuan ((nhung cong) OR (hang cong)) ((xuan toan) or (dan than)) ban~".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh tam tuan ((nhung cong) OR (hang cong)) ((xuan toan) or (dan than)) ban*.