Perhaps you should try some spelling variations:
nhanh thai » nhanh thi, nhanh thanh, nhanh thang
hinh thai » sinh thai, tinh thai, dinh thi
hieu van » hieu va, thien van, lieu va
tu sach » thu sach, su sach, te sach
van cac » van hac, van cau, van bac
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
nang o » nang co, nang ho, nang ro
o hai » co hai, so hai, o lai

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