Perhaps you should try some spelling variations:
trong quan » thong quan, tong quan, thong quang
cho sach » co sach, cao sach, cho lach
tung cua » trung cua, tuong cua, dung cua
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
khan cap » khan ap, than cap, khoan cam
cao cho » cap cho, cao chat

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

• Performing a fuzzy search may retrieve terms with similar spellings: cao cho sach - thanh ((tung cua) or (trong quan)) bang ((cong dan) OR (cong tan)) khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cao cho sach - thanh ((tung cua) OR (trong quan)) bang ((cong dan) OR (cong tan)) khan cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cao cho sach - thanh ((tung cua) or (trong quan)) bang ((cong dan) OR (cong tan)) khan cap".
• Adding a wildcard symbol may retrieve word variants: cao cho sach - thanh ((tung cua) or (trong quan)) bang ((cong dan) OR (cong tan)) khan cap*.