Perhaps you should try some spelling variations:
van phan » van phong, van thanh, luan phan
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
van anh » van thanh, tuan anh, van minh
thi cuc » tai cuc
cuc tre » duc tre, cua tre, cuu tre
co hai » co dai, co hoi, o hai
ve cac » va cac, vien cac
o hoc » co hoc, mo hoc, so hoc

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 ky nang ((o hoc) OR (co hai)). hieu ve cac xuc ((van phan) OR (van anh)) thi cuc tre~.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ((o hoc) or (co hai)). hieu ve cac xuc ((van phan) or (van anh)) thi cuc tre*.