Perhaps you should try some spelling variations:
tieu sach » chieu sach, dien sach, te sach
trung cua » truong cua, trung tuan, dung cua
trung cap » truong cao, trung tam
tong cong » trong cong, cong cong, dung cong
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu sach - thanh ((trung cua) OR (trung cap)) tong cong dan chan cau~".
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - thanh ((trung cua) OR (trung cap)) tong cong dan chan cau*.