Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trung » thanh trung, hanh trang, manh trung
hanh trinh » canh tranh, hanh chinh
doi chieu » doc hieu, doi chi, ho chieu
ban thanh » ban hanh, ban hang
thanh cau » thanh chau, thanh mau, nhanh cau
vat dung » van dung, viet dung, mat duong
cong ban » cong bang, cong san, cong tan
va dung » van dung, va duong, va ung

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - ((hanh trung) or (hanh trinh)) ((va dung) or (vat dung)) cong ban thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - ((hanh trung) OR (hanh trinh)) ((va dung) OR (vat dung)) cong ban thanh cau.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - ((hanh trung) or (hanh trinh)) ((va dung) or (vat dung)) cong ban thanh cau*.