Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hinh thai, hanh tai
thien van » thi van
thai cua » than cua, tai cuc, tri cua
nang noi » nang doc
van hanh » van thanh, ban hanh, van anh
cua tre » cua te, cuu tre, cua triet
duc van » duc va, duc tan, duc manh
nang co » nang cao, nang doc, nang hoc
hieu ve » hieu va, hieu van
cac duc » cac du, cao duc, cac dac
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((nang co) OR (nang noi)) lai. ((hieu ve) OR (thien van)) cac duc van hanh thai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky ((nang co) OR (nang noi)) lai. ((hieu ve) or (thien van)) cac duc van hanh thai cua tre~".
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((nang co) OR (nang noi)) lai. ((hieu ve) or (thien van)) cac duc van hanh thai cua tre*.