Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
toc sach » hoc sach, doc sach, nuoc sach
cham xuc » cam xuc, chat xuc, cham soc
hieu va » lieu va, hieu qua
va cham » va chat, va tham
va hanh » van hanh, va thanh, va danh
lua tre » cua tre, luy tre, dua tren
xuc va » duc va, tuc va, luc va
vi lua » vi luu
x hoi » xa hoi, o hoi, x ho

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: ((te sach) OR (((toc sach) OR (thuoc sach)))) ky nang x hoi. hieu va cham xuc va hanh vi lua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (((toc sach) OR (thuoc sach)))) ky nang x hoi. hieu va cham xuc va hanh vi lua tre~".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (((toc sach) OR (thuoc sach)))) ky nang x hoi. hieu va cham xuc va hanh vi lua tre*.