Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
hieu van » hieu va, thien van, lieu va
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
va cua » va chua, via cua, ca cua
x hoi » xa hoi, o hoi, x ho

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ky nang x hoi. ((hieu ve) OR (hieu van)) cam xuc va hanh va cua tre~".
• Adding a wildcard symbol may retrieve word variants: thuat sach ky nang x hoi. ((hieu ve) OR (hieu van)) cam xuc va hanh va cua tre*.