Perhaps you should try some spelling variations:
chet duoc » che duoc, cho duoc, che quoc
va thanh » gia thanh, ban thanh, va tinh
tu sach » thu sach, su sach, te sach
nang ma » tang ma, sang ma, nang cao
va chet » va chiet, va che, va chat
hai cua » thai cua, dai cua, hoi cua
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa
va dao » ca dao

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 y nang ma hoi. lieu va chet duoc ((va thanh) or (va dao)) hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang ma hoi. lieu va chet duoc ((va thanh) OR (va dao)) hai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang ma hoi. lieu va chet duoc ((va thanh) or (va dao)) hai cua tre*.