Perhaps you should try some spelling variations:
doc sach » toc sach, nuoc sach, dac sac
hoc sach » hoc sinh, hoc cac, hoc anh
thi hang » thi hanh, thi nang, thi hong
cham xuc » cam xuc, chat xuc, cham soc
van hanh » van thanh, ban hanh, van anh
hieu va » lieu va, hieu qua
va cham » va chat, va tham
xuc van » duc van, luc van, vuc van
cuu tre » cua tre, cau tren, cau treo
va hoi » xa hoi, va hoc, va hoa
vi cuu » vi luu, vinh cuu

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: ((doc sach) OR (hoc sach)) thi hang va hoi. hieu va cham xuc van hanh vi cuu tre~.
• Adding a wildcard symbol may retrieve word variants: ((doc sach) or (hoc sach)) thi hang va hoi. hieu va cham xuc van hanh vi cuu tre*.