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
y nang » ky nang, ly nang, v nang
ve cac » va cac, vien cac
do hoa » dong hoa
o hai » co hai, so hai, o lai
o hoa » so hoa, o ha, o 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 y nang ((((o hoa) or (do hoa))) 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 y nang ((((o hoa) OR (do hoa))) OR (o hai)). hieu ve cac xuc van hanh thai cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang ((((o hoa) or (do hoa))) or (o hai)). hieu ve cac xuc van hanh thai cuu tre*.