Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
tieu sach » dien sach, te sach, viet sach
cong dang » cong dong, cong dan, cong dung
dang van » hoang van, hang va
van toan » van tuan, van tan, van thanh
toan cau » toan cao, toan ban, toan tap
san cua » sang cua, ban cua, dan cua

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

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