Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
thai cuu » thai cua, tai cuc, thi cuc
anh thai » anh thi, anh tai, nhanh thai
vien cac » vien bach, vien dai, vien da
van anh » van thanh, tuan anh, van minh
xuc van » duc van, luc van, vuc van
cac xuc » cam xuc, cac nuoc, chat xuc
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
cso hai » co hai, cho hai, cao khai
cuu tre » cua tre, cau tren, cau treo
co hoi » co hoc, co loi
so hai » son hai, su hai, so ha

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 ky nang ((so hai) or (((cso hai) or (co hoi)))). hieu vien cac xuc van anh thai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang ((so hai) OR (((cso hai) OR (co hoi)))). hieu vien cac xuc van anh thai cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ((so hai) or (((cso hai) or (co hoi)))). hieu vien cac xuc van anh thai cuu tre*.