Perhaps you should try some spelling variations:
trung thanh » truong thanh
chieu sach » chinh sach, chiet tach, chieu sang
trung tuan » trung tam, tran tuan, truong thanh
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
cong ban » cong bang, cong san, cong tan
phan cau » phan dau, phan cac, phan tu
toan cau » toan cao, toan ban, toan tap

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