Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hinh thai, hanh tai
thai cua » than cua, tai cuc, tri cua
te sach » toc sach
hieu ve » hieu va, hieu van
xuc van » luc van, vuc van, xuc ban
duc van » duc va, duc tan, duc manh
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
nang o » nang co, nang ho, nang ro
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.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y nang o hoc. hieu ve cac ((xuc van) OR (duc van)) hanh thai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang o hoc. hieu ve cac ((xuc van) OR (duc van)) hanh thai cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach y nang o hoc. hieu ve cac ((xuc van) OR (duc van)) hanh thai cua tre*.