Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh dong » thanh duong, thanh cong, hanh dong
dong cong » duong cong, dung cong, cong cong
dang cong » dung cong
ho chieu » theo chieu, hoc thieu, doi chieu
dong cua » dung cua, cong cua, huong cua
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.

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - thanh dong cua ((dong cong) OR (dang cong)) tac ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh dong cua ((dong cong) OR (dang cong)) tac ((toan cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh dong cua ((dong cong) OR (dang cong)) tac ((toan cau) or (toan tap))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh dong cua ((dong cong) OR (dang cong)) tac ((toan cau) or (toan tap))*.