Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
su sach » so sach, vu sach
ve cham » va cham, ve chat, vu cham
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach ty
nang co » nang cao, nang doc, nang noi
ve cac » va cac, vien cac
ve cam » va cam, ve cai, ve cau
co hoi » co hoc, co loi

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