Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
va thanh » gia thanh, ban thanh, va tinh
ve triet » va trien, su triet
qua cau » quan cau, qua cac, qua ca
va hanh » van hanh, va danh, ban hanh
cau xuc » cam xuc, cau luc, cau truc
v nang » va nang, vu nang, van nang
y nang » ky nang, ly nang, may nang
x hoi » xa hoi, o hoi, x ho
vi ve » va ve, gi ve, ve ve

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

• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((y nang) OR (v nang)) x hoi. hieu qua cau xuc ((va hanh) OR (va thanh)) vi ve triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ((y nang) OR (v nang)) x hoi. hieu qua cau xuc ((va hanh) or (va thanh)) vi ve triet~".
• Adding a wildcard symbol may retrieve word variants: thu sach ((y nang) OR (v nang)) x hoi. hieu qua cau xuc ((va hanh) or (va thanh)) vi ve triet*.