Perhaps you should try some spelling variations:
phuong doan » phuong loan, phuong hoang, huong dan
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, mot chieu
trung cua » truong cua, trung tuan, trung cap
doan than » dan than, doan tuan, doan phan
cua bang » chua bang, cua ban, cua dang
than cau » toan cau, phan cau, than cap

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 - thanh trung cua bang phuong doan than cau~.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh trung cua bang phuong doan than cau*.