Perhaps you should try some spelling variations:
nhanh thai » nhanh thi, nhanh thanh, nhanh thang
cua triet » cua viet, su triet, va triet
hieu vien » hieu hien, hieu viec, thieu nien
van nhanh » van thanh, van hanh, van khanh
vien cac » vien bach, vien dai, vien da
sach ky » sac ky, sach y, sach ty
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
cua tre » cua te, cuu tre, dua tren
su sach » so sach, vu sach
co hoi » co hoc, co loi
o hoi » o hoc, o hai, o hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky nang ((o hoi) or (co hoi)). hieu vien cac xuc van nhanh thai ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang ((o hoi) OR (co hoi)). hieu vien cac xuc van nhanh thai ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: su sach ky nang ((o hoi) or (co hoi)). hieu vien cac xuc van nhanh thai ((cua tre) or (cua triet))*.