Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
toc sach » hoc sach, doc sach, thuoc sach
thanh vi » hanh vi, thanh va, thanh ve
ty nang » ky nang, ty xang, ty hang
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
ve bac » ve bao, ve cac, ve ban
si van » su van, so van, vi van
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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) ty nang x hoi. hieu ve bac si van thanh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((te sach) OR (toc sach)) ty nang x hoi. hieu ve bac si van thanh vi cua tre*.