Perhaps you should try some spelling variations:
cuoi cua » hoi cua, doi cua, co cua
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
va danh » va dan, va hanh, dia danh
va dinh » van dinh, va kinh, va tinh
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
cac tu » cac thu, cach tu, cac du

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: tu sach y nang ((le hoi) OR (ma hoa)). hieu va cac tu ((va danh) OR (va dinh)) cuoi cua tre~.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang ((le hoi) or (ma hoa)). hieu va cac tu ((va danh) or (va dinh)) cuoi cua tre*.