Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
va thanh » gia thanh, va tinh, le thanh
su sach » so sach, vu sach
lai cua » dai cua, hai cua, lai chau
hieu va » lieu va, hieu qua
ly hang » ly quang
ty nang » ky nang, ty xang, ty hang
cua tre » cua te, cuu tre, cua triet
co loi » co hoi
va cam » va cham, va cac, va cao

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 ((ty nang) or (ly hang)) co loi. hieu va cam xuc ((va thanh) or (ban thanh)) lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ty nang) OR (ly hang)) co loi. hieu va cam xuc ((va thanh) OR (ban thanh)) lai cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ((ty nang) or (ly hang)) co loi. hieu va cam xuc ((va thanh) or (ban thanh)) lai cua tre*.