Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
ban thanh » ban hanh, ban hang
cua triet » su triet, va triet
cua viet » ca viet, hoa viet, cua vat
te sach » toc sach
ly nang » ly hang, ly vang, ly quang
dao duc » giao duc, tao duoc
duc ban » duc tan, duc van, dua ban
va dao » ca dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((ly nang) or (ky nang)) xa hoi. lieu va dao duc ban thanh hai ((cua triet) OR (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ly nang) OR (ky nang)) xa hoi. lieu va dao duc ban thanh hai ((cua triet) OR (cua viet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ly nang) or (ky nang)) xa hoi. lieu va dao duc ban thanh hai ((cua triet) OR (cua viet))".
• Adding a wildcard symbol may retrieve word variants: te sach ((ly nang) or (ky nang)) xa hoi. lieu va dao duc ban thanh hai ((cua triet) OR (cua viet))*.