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 luan » truong luan, trung tuan, trung quan
luan dong » luan cong, quan dong, luan nong
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
chon cac » cho cac, thong cac, hoc cac

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 luan dong ((cong dan) or (cong san)) chon cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - thanh trung luan dong ((cong dan) OR (cong san)) chon cac.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh trung luan dong ((cong dan) or (cong san)) chon cac*.