Perhaps you should try some spelling variations:
nhung chong » nhung phong, nhung phuong, phong chong
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
hoc chieu » hoc thieu, ho chieu, hoc hien
hanh tang » hanh trang, anh tang, hanh mang
tang cua » mang cua, hang cua, tang luan
toan cao » toan ban, toan tap

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