Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trinh chao » trinh chat, trinh han, trinh co
hoc chieu » hoc thieu, ho chieu, hoc hien
chao thuc » nhan thuc, cho thue, choi thuc
thuc hung » thuc chung, thuc nhung, thuc dung
cong tang » cong thang, cong lang, cong vang
cong tan » cong tac, cong san, cong thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu sach - trinh chao thuc hung ((cong tan) or (cong tang)) phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - trinh chao thuc hung ((cong tan) OR (cong tang)) phan tu.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - trinh chao thuc hung ((cong tan) or (cong tang)) phan tu*.