Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
sang tao » hang tai
hieu van » hieu va, thien van, lieu va
chua tre » chua tri, cua tre, chua trieu
sach tu » sach thu, cach tu, sach ty
tu sang » thu sang, tu san, tu lang
van cam » van nam, van lam, van cau
cam tuc » cam xuc, cam tu, nam thuc
hanh va » hang va
tuc va » thuc va, truc va, tuc xa

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: toc sach tu sang tao boi. hieu van cam tuc va ((hanh va) OR (hanh vi)) chua tre~.
• Adding a wildcard symbol may retrieve word variants: toc sach tu sang tao boi. hieu van cam tuc va ((hanh va) or (hanh vi)) chua tre*.