Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhan tuong » nhan trong, nhan thong, nhan tong
doanh cua » doanh luan
tuong van » truong van, trong van, duong van
ho chieu » theo chieu, hoc thieu, doi chieu
mang cua » manh cua, dung cua, ban cua
tan ban » toan ban, tang ban, can 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: ho chieu sach - hanh ((doanh cua) OR (mang cua)) nhan tuong van ((tan ban) OR (van ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh ((doanh cua) or (mang cua)) nhan tuong van ((tan ban) OR (van ban))~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh ((doanh cua) or (mang cua)) nhan tuong van ((tan ban) OR (van ban))*.