Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
phat suc » pha suc, phan suc, phat huy
bat hanh » bat khanh, ban hanh, bao hanh
va triet » va thiet, va trien, ve triet
su triet » su viet, su tien, ve triet
nang xa » nang x, lang xa, nang ma
hieu va » hieu qua
suc bat » luc bat, duoc bat
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y nang xa hoi. ((hieu va) OR (lieu va)) phat suc bat hanh vi ((va triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang xa hoi. ((hieu va) OR (lieu va)) phat suc bat hanh vi ((va triet) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y nang xa hoi. ((hieu va) OR (lieu va)) phat suc bat hanh vi ((va triet) or (su triet))".
• Adding a wildcard symbol may retrieve word variants: thu sach y nang xa hoi. ((hieu va) OR (lieu va)) phat suc bat hanh vi ((va triet) or (su triet))*.