Perhaps you should try some spelling variations:
doc sach » hoc sach, toc sach, nuoc sach
su triet » su viet, su tien, ve triet
qua cam » qua cham, qua cac, qua ca
va hanh » van hanh, va thanh, va danh
y nang » ky nang, ly nang, v nang
xuc va » duc va, tuc va, luc va
vi su » va su, ve su, ki su

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: doc sach y nang ((xa hoi) OR (cac khoan)). hieu qua cam xuc va hanh vi su triet~.
• Adding a wildcard symbol may retrieve word variants: doc sach y nang ((xa hoi) or (cac khoan)). hieu qua cam xuc va hanh vi su triet*.