Perhaps you should try some spelling variations:
thanh vi » hanh vi, thanh va, thanh ve
hieu su » hieu sau, tieu su, hieu so
su cham » su pham, tu cham, vu cham
soc van » oc van, sac van, soc dan
hoc van » hoc dan, hoc va, hoc vat
cua tre » cua te, cuu tre, cua triet
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
vi cua » vai cua, di cua
x hoi » xa hoi, o hoi, x ho

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang x hoi. hieu su cham ((soc van) or (hoc van)) thanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang x hoi. hieu su cham ((soc van) OR (hoc van)) thanh vi cua tre*.