Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
chat nhung » chat ngung, thuat nhung, cua nhung
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan tap » toan ban

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 tinh chat nhung ((cong dan) OR (cong san)) toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - hanh tinh chat nhung ((cong dan) OR (cong san)) toan tap".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh tinh chat nhung ((cong dan) OR (cong san)) toan tap*.