Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
tu cach » tu cac
hang vi » hang va, hanh vi, khang voi
hang di » hang doi, hang dien, hang dich
cua tre » cua te, cuu tre, cua triet
hieu vu » hieu va, hieu ve, hieu su
xuc va » duc va, tuc va, luc va
vu cam » vu cham, vu cao, va cam
x hoi » xa hoi, o hoi, x ho

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: ((tu cach) OR (thu sach)) ky nang x hoi. hieu vu cam xuc va ((hang di) OR (hang vi)) cua tre~.
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (thu sach)) ky nang x hoi. hieu vu cam xuc va ((hang di) or (hang vi)) cua tre*.