Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
cham xuc » cam xuc, chat xuc, cham soc
dong hoa » dong hoc, dong co
thanh va » hanh va, thanh ha, thanh ve
xuc van » duc van, luc van, vuc van
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
hien tu » khien tu
ky dong » ly dong, ky dang, ky cong
cua tre » cua te, cuu tre, cua triet

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: so sach ky dong hoa hoc. ((hien tu) OR (dien tu)) cham xuc van ((thanh va) OR (thanh van)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky dong hoa hoc. ((hien tu) OR (dien tu)) cham xuc van ((thanh va) or (thanh van)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: so sach ky dong hoa hoc. ((hien tu) OR (dien tu)) cham xuc van ((thanh va) or (thanh van)) cua tre*.