Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
ganh nang » anh nang, nganh nong, van nang
cua nhung » va nhung
anh tang » anh bang, anh dang, anh nang
cong dan » cong san, cong tan, cong dong
tai sao » tai san

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 - ((anh tang) or (ganh nang)) cua nhung ((cong dan) OR (huong dan)) tai sao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - ((anh tang) OR (ganh nang)) cua nhung ((cong dan) OR (huong dan)) tai sao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - ((anh tang) or (ganh nang)) cua nhung ((cong dan) OR (huong dan)) tai sao*".