Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
thanh vi » hanh vi, thanh va, thanh ve
te sach » toc sach
hieu ve » hieu van
hieu va » lieu va, hieu qua
cam luc » cam xuc, cau luc
cua tre » cua te, cuu tre, cua triet
y nang » ly nang, v nang, may nang
luc va » duc va, tuc va, loc va
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) OR (ky nang)) x hoi. ((hieu ve) or (hieu va)) cam luc va thanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y nang) OR (ky nang)) x hoi. ((hieu ve) OR (hieu va)) cam luc va thanh vi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((y nang) OR (ky nang)) x hoi. ((hieu ve) or (hieu va)) cam luc va thanh vi cua tre*".