Perhaps you should try some spelling variations:
thai cuu » thai cua, tai cuc, thi cuc
anh thai » anh thi, anh tai, nhanh thai
tu sach » thu sach, su sach, te sach
van anh » van thanh, tuan anh, van minh
xuc van » duc van, luc van, vuc van
cuu tre » cua tre, cau tren, cau treo
y nang » ky nang, ly nang, v nang
ve cac » vien cac
o hai » co hai, so hai, o lai
o hoa » do hoa, so hoa, o 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 y nang ((o hoa) or (o hai)). hieu ((ve cac) OR (va cac)) xuc van anh thai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang ((o hoa) OR (o hai)). hieu ((ve cac) OR (va cac)) xuc van anh thai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang ((o hoa) or (o hai)). hieu ((ve cac) OR (va cac)) xuc van anh thai cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang ((o hoa) or (o hai)). hieu ((ve cac) OR (va cac)) xuc van anh thai cuu tre*.