Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh tran » hanh trang, thanh tran, hanh tram
ho chieu » theo chieu, hoc thieu, doi chieu
tran van » luan van
van dung » van dong, xay dung, tin dung
cong dan » cong san, cong tan, cong dong
toan cau » toan cao, toan ban, toan tai
toan tap » toan 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 tran van dung ((cong dan) OR (huong dan)) ((toan cau) OR (toan tap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh tran van dung ((cong dan) OR (huong dan)) ((toan cau) or (toan tap))~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh tran van dung ((cong dan) OR (huong dan)) ((toan cau) or (toan tap))*.