Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
trung tuan » trung thanh, trung tam, tran tuan
tuan dung » tuan duong, tran dung, tan dung
dung cong » dung trong
cong dan » cong san, cong tan, huong dan
chan cau » phan cau, chinh cau, nhanh cau
can cau » van cau, ban cau, ca cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - thanh trung tuan dung cong dan ((chan cau) or (can cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - thanh trung tuan dung cong dan ((chan cau) OR (can cau)).
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh trung tuan dung cong dan ((chan cau) or (can cau))*.