Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh manh » hanh mang, lanh manh, hoang manh
dong cong » duong cong, dung cong, dang cong
chu sach » cau sach, thu sach, chuc hach
manh cua » doanh cua, ban cua
cua dong » chua dong, cua cong, cua dang
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu sach) OR (chieu sach)) - hanh manh cua dong cong dan toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu sach) OR (chieu sach)) - hanh manh cua dong cong dan toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chu sach) OR (chieu sach)) - hanh manh cua dong cong dan toan cau*.