Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
sach ky » sac ky, sach y, sach ty
cuc ban » cua ban, cac ban, cuu ban
va chat » van chat, va phat, cao chat
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao
hanh y » hanh ky, anh y, hanh may
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 ky nang x hoi. hieu ((va cam) or (va chat)) cuc ban ((hanh y) or (hanh _)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang x hoi. hieu ((va cam) OR (va chat)) cuc ban ((hanh y) OR (hanh _)) cua tre.
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang x hoi. hieu ((va cam) or (va chat)) cuc ban ((hanh y) or (hanh _)) cua tre*.