Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
cua nhung » va nhung
chong van » thong van, hong van, chong va
phong van » phung van, thong van, phong va
tinh cua » trinh cua, sinh cua, tinh chat
toan ban » van ban

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 tinh cua nhung ((chong van) OR (phong van)) ((toan tap) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - hanh tinh cua nhung ((chong van) OR (phong van)) ((toan tap) or (toan ban))~".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh tinh cua nhung ((chong van) OR (phong van)) ((toan tap) or (toan ban))*.