Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
tang cua » mang cua, tang luan, thong cua
hang cua » mang cua, hang ca, huong cua
cong tam » cong tac, cong nam, dong tam
cong tan » cong tac, cong san, cong thanh
toan cau » toan cao, toan ban, toan tap

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: doi chieu sach - hanh ((tang cua) OR (hang cua)) dong ((cong tam) OR (cong tan)) toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - hanh ((tang cua) or (hang cua)) dong ((cong tam) OR (cong tan)) toan cau~".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh ((tang cua) or (hang cua)) dong ((cong tam) OR (cong tan)) toan cau*.