Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
cong thanh » dong thanh, cong trinh, cong tan
thanh phan » thanh pho, thanh san, thanh toan
tuan dang » tran dang, tuan bang, tuan dung
ho chieu » theo chieu, hoc thieu, doi chieu
tuan ban » tuan bang, toan ban, luan ban
phan cau » phan dau, phan cac, phan tu

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

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