Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
sach ty » sach tu, sach thu, xach tay
hieu va » lieu va, hieu qua
xuc gia » duc gia, luc gia, tuc gia
van cua » vang cua, ban cua, dan cua
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao
x hoi » xa hoi, o hoi, x ho
o hai » co hai, so hai, o lai

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) OR (sach y)) nang ((x hoi) OR (o hai)). hieu va cam xuc gia thanh van cua tre~.
• Adding a wildcard symbol may retrieve word variants: thu ((sach ty) or (sach y)) nang ((x hoi) or (o hai)). hieu va cam xuc gia thanh van cua tre*.