Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh vi » hanh vi, thanh va, thanh ve
su sach » so sach, vu sach
xuc van » duc van, luc van, vuc van
dao xuc » dao duc, dao tuc, dao xu
hieu va » hieu qua
cua tre » cua te, cuu tre, cua triet
va nang » van nang, da nang, cam nang
v nang » vu nang, van nang, voi nang
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ((v nang) or (va nang)) xa hoi. ((hieu va) OR (lieu va)) dao xuc van thanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((v nang) OR (va nang)) xa hoi. ((hieu va) OR (lieu va)) dao xuc van thanh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((v nang) or (va nang)) xa hoi. ((hieu va) OR (lieu va)) dao xuc van thanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: su sach ((v nang) or (va nang)) xa hoi. ((hieu va) OR (lieu va)) dao xuc van thanh vi cua tre*.