Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
hieu van » hieu va, thien van, lieu va
thanh vi » hanh vi, thanh va, thanh ve
te sach » toc sach
van bac » van ban, van bao, van hac
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
bac vo » bac bo, bac ho, bac va
vo ban » co ban, vo van, va ban
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: te sach y nang x hoi. hieu van bac vo ban thanh vi cua tre~.
• Adding a wildcard symbol may retrieve word variants: te sach y nang x hoi. hieu van bac vo ban thanh vi cua tre*.