Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
va triet » va thiet, va trien, ve triet
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » van hanh, va thanh, va danh
xuc va » duc va, tuc va, luc va
cua te » cua tu
cua cu » cua chu, cua cau, cua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach ky nang xa hoi. hieu va cac xuc va hanh vi ((((cua te) or (cua cu))) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ky nang xa hoi. hieu va cac xuc va hanh vi ((((cua te) OR (cua cu))) OR (va triet)).
• Adding a wildcard symbol may retrieve word variants: thuoc sach ky nang xa hoi. hieu va cac xuc va hanh vi ((((cua te) or (cua cu))) or (va triet))*.