Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
thu sach » tu sach, thuat sach, thuoc sach
va thanh » gia thanh, ban thanh, va tinh
cham xuc » cam xuc, chat xuc, cham soc
sach ty » sach y, sach tu, sach thu
cua tre » cua te, cua triet, dua tren
va cham » va chat, va tham
ty nang » ky nang, ty xang, ty hang
hieu va » lieu va, hieu qua
cuu tre » cau tren, cau treo
xuc va » duc va, tuc va, luc va
o hoi » co hoi, o hoc, o hai
x hoi » xa hoi, x ho, 5 hoi

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 ty nang ((x hoi) OR (o hoi)). hieu va cham xuc va thanh van ((cua tre) OR (cuu tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ty nang ((x hoi) or (o hoi)). hieu va cham xuc va thanh van ((cua tre) OR (cuu tre))~".
• Adding a wildcard symbol may retrieve word variants: thu sach ty nang ((x hoi) or (o hoi)). hieu va cham xuc va thanh van ((cua tre) OR (cuu tre))*.