Perhaps you should try some spelling variations:
chiet tach » chieu sach
trung tuan » trung thanh, trung tam, tran tuan
nhung cong » dung cong, thong cong, hang cong
cong quang » luong quang, thong quang, duong quang
trung cua » truong cua, trung cap, dung cua
thong cau » thong cac, thong tu, thong cua
thong cap » thong cac, trung cap, thong cua
ho chiet » ho chieu, ho thiet, hoc thiet

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - thanh ((trung cua) OR (trung tuan)) nhung cong quang ((thong cau) OR (thong cap))~.
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - thanh ((trung cua) or (trung tuan)) nhung cong quang ((thong cau) or (thong cap))*.