Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, hieu ve
ban banh » ban hanh, ban anh, ban danh
ty nang » ty xang, ty hang, ly nang
lam xuc » cam xuc, lam duoc
xuc ban » duc ban, cuc ban, quoc ban
banh vi » hanh vi, ban vi, benh vi
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ((ty nang) or (ky nang)) o hoi. ((hieu van) or (lieu va)) lam xuc ban banh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((ty nang) OR (ky nang)) o hoi. ((hieu van) OR (lieu va)) lam xuc ban banh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: thu sach ((ty nang) or (ky nang)) o hoi. ((hieu van) or (lieu va)) lam xuc ban banh vi cua tre*.