Perhaps you should try some spelling variations:
ban thanh » ban hanh
ban hang » ngan hang
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
dao duc » giao duc, tao duoc
hai cua » thai cua, hoi cua, lai cua
y nang » ky nang, ly nang, v nang
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: tu sach y nang xa hoi. lieu va dao duc ((ban thanh) OR (ban hang)) ((hai cua) or (dai cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang xa hoi. lieu va dao duc ((ban thanh) OR (ban hang)) ((hai cua) OR (dai cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang xa hoi. lieu va dao duc ((ban thanh) OR (ban hang)) ((hai cua) or (dai cua)) triet".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. lieu va dao duc ((ban thanh) OR (ban hang)) ((hai cua) or (dai cua)) triet*.