Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hanh tai, anh thai
hinh thai » sinh thai, tinh thai, chinh tai
dinh thi » dinh tri
cua tre » cua te, cuu tre, cua triet
xuc van » duc van, luc van, vuc van
cac xuc » cam xuc, cac nuoc, chat xuc
hieu ve » hieu va, hieu van
sac ky » cac ky, sai ky
ve cac » va cac, vien cac
nang o » nang co, nang ho, nang ro
tu sac » tu sach, tu cac, tu san
o lai » o lao

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang o lai. hieu ve cac xuc van ((hanh thai) or (((hinh thai) OR (dinh thi)))) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang o lai. hieu ve cac xuc van ((hanh thai) OR (((hinh thai) OR (dinh thi)))) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang o lai. hieu ve cac xuc van ((hanh thai) or (((hinh thai) OR (dinh thi)))) cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang o lai. hieu ve cac xuc van ((hanh thai) or (((hinh thai) OR (dinh thi)))) cua tre*.