Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
vu sach » vu bach, su sach, vu khach
lai cua » dai cua, hai cua, lai chau
cua tre » cua te, cuu tre, cua triet
sach ty » sach y, sach tu, sach thu
nang co » nang cao, nang doc, nang noi
ty nang » ky nang, ty xang, ty hang
ve cac » va cac, vien cac
va cam » va cham, va cac, va cao
co loi » co hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ty nang co loi. hieu ((va cam) or (ve cac)) xuc ((ban thanh) or (gia thanh)) lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ty nang co loi. hieu ((va cam) OR (ve cac)) xuc ((ban thanh) OR (gia thanh)) lai cua tre.
• Adding a wildcard symbol may retrieve word variants: vu sach ty nang co loi. hieu ((va cam) or (ve cac)) xuc ((ban thanh) or (gia thanh)) lai cua tre*.