Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
hanh manh » hanh mang, lanh manh, hoang manh
hang dong » hang cong, hanh dong, lang dong
hang nong » thang long, han tong
manh cua » doanh cua, ban cua
toan ban » van 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 manh cua ((hang dong) OR (hang nong)) tinh toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - hanh manh cua ((hang dong) OR (hang nong)) tinh toan ban".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh manh cua ((hang dong) OR (hang nong)) tinh toan ban*.