Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
truong cua » truong ca, truong quan, truong cao
trung cua » trung tuan, trung cap, dung cua
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong tac, cong san, cong thanh
tran cau » tran chau, ran cau, tra cau
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: ho chieu sach - thanh ((trung cua) OR (truong cua)) dung cong tan ((tran cau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh ((trung cua) OR (truong cua)) dung cong tan ((tran cau) OR (toan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh ((trung cua) OR (truong cua)) dung cong tan ((tran cau) or (toan cau))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((trung cua) OR (truong cua)) dung cong tan ((tran cau) or (toan cau))*.