Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
tai cua » thai cua, tai cuc, tri cua
anh tai » hanh tai, anh thai, vanh tai
van anh » van thanh, tuan anh, van minh
xuc van » duc van, luc van, vuc van
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach ty
co hoi » co hoc, co loi
ve cac » vien cac
o hoi » o hoc, o hai, o hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky nang ((o hoi) or (co hoi)). hieu ((ve cac) or (va cac)) xuc van anh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang ((o hoi) OR (co hoi)). hieu ((ve cac) OR (va cac)) xuc van anh tai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ((o hoi) or (co hoi)). hieu ((ve cac) or (va cac)) xuc van anh tai cua tre*.