Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
quoc bao » quoc oai, hoc bao, quoc va
te sach » toc sach
hai cuu » hai cua, hai chu, hai cuc
hieu va » lieu va, hieu qua
sach ky » sac ky, sach y, sach ty
mau hoi » mai hoi, mau ho, mau hop
ky dang » ky nang, ky danh
cuu tre » cua tre, cau tren, cau treo
va cam » va cham, va cac, va cao

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: te sach ky dang ((mau hoi) OR (cau hoi)). hieu va cam ((duc tan) OR (quoc bao)) thanh hai cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky dang ((mau hoi) OR (cau hoi)). hieu va cam ((duc tan) or (quoc bao)) thanh hai cuu tre~".
• Adding a wildcard symbol may retrieve word variants: te sach ky dang ((mau hoi) OR (cau hoi)). hieu va cam ((duc tan) or (quoc bao)) thanh hai cuu tre*.