Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
so sach » so sanh, bo sach, co sach
xuc van » duc van, luc van, vuc van
cua tre » cua te, cuu tre, cua triet
su viet » so viet
y nang » ky nang, ly nang, v nang
va cam » va cham, va cac, va cao
x hoi » xa hoi, o hoi, 5 hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach y nang ((x hoi) or (x ho)). lieu va cam xuc van thanh san ((cua tre) or (su viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y nang ((x hoi) OR (x ho)). lieu va cam xuc van thanh san ((cua tre) OR (su viet)).
• Adding a wildcard symbol may retrieve word variants: so sach y nang ((x hoi) or (x ho)). lieu va cam xuc van thanh san ((cua tre) or (su viet))*.