Perhaps you should try some spelling variations:
thanh phan » thanh pho, thanh san, thanh toan
quoc bao » quoc oai, quoc va
phan cuu » phan cau, phan huu, phan cung
dang mau » dong mau, dang van, dang su
te sach » toc sach
hoc bao » hoc cao, hoc bai, hoc bo
cuu tre » cua tre, cau tren, cau treo
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
mau hoi » cau hoi, mai hoi, mau ho
ky dang » ky nang, ky danh
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. hieu va cam ((duc tan) OR (((quoc bao) OR (hoc bao)))) thanh phan cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky dang mau hoi. hieu va cam ((duc tan) or (((quoc bao) OR (hoc bao)))) thanh phan cuu tre~".
• Adding a wildcard symbol may retrieve word variants: te sach ky dang mau hoi. hieu va cam ((duc tan) or (((quoc bao) OR (hoc bao)))) thanh phan cuu tre*.