Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
cua triet » cua viet, su triet, va triet
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
cua tre » cua te, cuu tre, dua tren
qua ca » qua cac, qua cua, qua cai
ca xuc » cam xuc, chat xuc
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: su sach ky nang x hoi. hieu qua ca xuc ((tuan anh) OR (van thanh)) vi ((cua tre) OR (cua triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang x hoi. hieu qua ca xuc ((tuan anh) or (van thanh)) vi ((cua tre) OR (cua triet))~".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang x hoi. hieu qua ca xuc ((tuan anh) or (van thanh)) vi ((cua tre) OR (cua triet))*.