Perhaps you should try some spelling variations:
thanh dat » thanh san, thanh hai, thanh van
thanh dai » thanh hai, thanh tai, thanh oai
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, lieu va
tuc ban » thuc ban, truc ban, tu ban
cam tuc » cam xuc, cam tu, nam thuc
van cam » van nam, van lam, van cau
te sach » toc sach
cua tre » cua te, cuu tre, cua triet
x hoi » xa hoi, o hoi, x ho

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (te sach)) ky nang x hoi. hieu van cam tuc ban ((thanh dai) OR (thanh dat)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) or (te sach)) ky nang x hoi. hieu van cam tuc ban ((thanh dai) OR (thanh dat)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (te sach)) ky nang x hoi. hieu van cam tuc ban ((thanh dai) OR (thanh dat)) cua tre*.