Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thu sach » tu sach, thuat sach, thuoc sach
thanh vi » hanh vi, thanh va, thanh ve
va cham » va chat, va tham
xuc ban » duc ban, cuc ban, quoc ban
cua tre » cua te, cuu tre, cua triet
te sach » toc sach
ve cam » ve cham, ve cac, va cam
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: ((thu sach) or (te sach)) ky nang x hoi. hieu ((ve cam) or (va cham)) xuc ban thanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (te sach)) ky nang x hoi. hieu ((ve cam) OR (va cham)) xuc ban thanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (te sach)) ky nang x hoi. hieu ((ve cam) or (va cham)) xuc ban thanh vi cua tre*.