Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
dang chung » dang hung, dung chung, bang chung
hanh tang » hanh trang, anh tang, hanh mang
chung lan » chung luan, nhung lan, chung han
tang cua » mang cua, hang cua, tang luan
cua dang » cua cong, cua ban
phan cau » phan cac, phan tu, phan lap
phan dau » phan tu, hang dau

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) or (chiet tach)) - hanh tang cua dang chung lan ((phan cau) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (chiet tach)) - hanh tang cua dang chung lan ((phan cau) OR (phan dau)).
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (chiet tach)) - hanh tang cua dang chung lan ((phan cau) or (phan dau))*.