Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
nhung tong » nhung tuong, nhung cong, nhung bong
trung cua » truong cua, trung tuan, dung cua
trung cap » truong cao, trung tam
tong doan » cong doan, long doan, tong don
doan phan » doanh phan, toan phan, dan phan
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: doi ((chieu sach) or (chinh sach)) - thanh ((trung cua) OR (trung cap)) nhung tong doan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (chinh sach)) - thanh ((trung cua) OR (trung cap)) nhung tong doan phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sach) or (chinh sach)) - thanh ((trung cua) OR (trung cap)) nhung tong doan phan cau".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) or (chinh sach)) - thanh ((trung cua) OR (trung cap)) nhung tong doan phan cau*.