Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, truong thanh
cong quang » luong quang, thong quang, duong quang
tieu sach » chieu sach, dien sach, te sach
tran tuan » tran xuan, tran quang, tran thanh
cong van » cong vang, cong san, song van
tuan cau » toan cau, quan cau, tuan cu

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: theo tieu sach - thanh ((trung tuan) OR (tran tuan)) nhung ((cong van) OR (cong quang)) tuan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu sach - thanh ((trung tuan) OR (tran tuan)) nhung ((cong van) or (cong quang)) tuan cau~".
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - thanh ((trung tuan) OR (tran tuan)) nhung ((cong van) or (cong quang)) tuan cau*.