Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hinh thai, hanh tai
thai cuu » thai cua, tai cuc, thi cuc
van hanh » van thanh, ban hanh, van anh
hieu ve » hieu va, hieu van
xuc van » duc van, luc van, vuc van
cac xuc » cam xuc, cac nuoc, chat xuc
tu sach » thu sach, su sach, te sach
cuu tre » cua tre, cau tren, cau treo
ve cac » va cac, vien cac
o hai » co hai, so hai, o lai
o hoc » co hoc, mo hoc, so hoc

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