Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
hanh trung » thanh trung, hanh trang, manh trung
trung cua » truong cua, trung tuan, trung cap
cua thong » cua thuong, cua khong, cua tong
cong dan » cong tan, huong dan, cong dong
cong tac » cong ty
chan ban » can ban, chat ban, chan nan

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 - hanh trung cua thong ((cong dan) or (((cong san) OR (cong tac)))) chan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - hanh trung cua thong ((cong dan) OR (((cong san) OR (cong tac)))) chan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - hanh trung cua thong ((cong dan) or (((cong san) OR (cong tac)))) chan ban".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh trung cua thong ((cong dan) or (((cong san) OR (cong tac)))) chan ban*.