Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu xanh » chieu sang, chieu tinh, hieu manh
hanh hinh » hanh chinh, hanh tinh, hanh dinh
dong dong » dong duong, cong dong, dung dong
dong luan » dung luan, tong luan, dong xuan
luan phan » luan van, luan hoan
hinh cua » chinh cua, sinh cua, tinh cua
cua dong » chua dong, cua cong, cua dang
phan cac » nhan cach, phan dau, phan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sach) or (chieu xanh)) - hanh hinh cua dong dong luan phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chieu xanh)) - hanh hinh cua dong dong luan phan cac.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chieu xanh)) - hanh hinh cua dong dong luan phan cac*.