Perhaps you should try some spelling variations:
cang thang » cong thanh, dang thanh
chieu sach » chinh sach, chiet tach, chieu sang
hang hang » nang hang, hung thang, lang thang
cua nhung » va nhung
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
thai cao » tai cao, thoai cac, thuat cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - ((hang hang) OR (cang thang)) cua nhung ((cong dan) or (cong san)) thai cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((hang hang) OR (cang thang)) cua nhung ((cong dan) OR (cong san)) thai cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - ((hang hang) OR (cang thang)) cua nhung ((cong dan) or (cong san)) thai cao".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((hang hang) OR (cang thang)) cua nhung ((cong dan) or (cong san)) thai cao*.