Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
cao hoi » cau hoi, cao hoc, tao hoi
hieu ve » hieu va, hieu van
xuc van » duc van, xuc ban, thuc van
luc van » luoc van, luu van, duc van
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
co hoi » co hoc, co loi
ve cam » ve cham, ve cac, va cam

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 ((cao hoi) or (co hoi)). hieu ve cam ((xuc van) or (luc van)) hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang ((cao hoi) OR (co hoi)). hieu ve cam ((xuc van) OR (luc van)) hanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ky nang ((cao hoi) or (co hoi)). hieu ve cam ((xuc van) or (luc van)) hanh vai cua tre*.