Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh thai » nhanh thai, hinh thai, hanh tai
hieu vien » hieu hien, hieu viec, thieu nien
van hanh » van thanh, ban hanh, van anh
vien cac » vien bach, vien dai, vien da
nang co » nang cao, nang doc, nang noi
sach ky » sac ky, sach ty, sach kem
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
cua tre » cua te, cuu tre, dua tren
co hoi » co hoc, co loi

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 ((sach ky) OR (sach y)) nang co hoi. hieu vien cac xuc van hanh thai ((cua tre) OR (cua triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sach y)) nang co hoi. hieu vien cac xuc van hanh thai ((cua tre) or (cua triet))~".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) OR (sach y)) nang co hoi. hieu vien cac xuc van hanh thai ((cua tre) or (cua triet))*.