Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
toc sach » hoc sach, doc sach, thuoc sach
dang bat » danh bat, dang vat, dang ba
sach ky » sac ky, sach y, sach ty
ky dang » ky nang, ky danh
bat loi » bat moi, tat loi, nhat loi
hieu ve » hieu va, hieu van
vai cua » dai cua, hai cua, lai cua
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: toc sach ky dang bat loi. hieu ve cam xuc ((le thanh) or (ban thanh)) ((vai cua) or (lai chau)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky dang bat loi. hieu ve cam xuc ((le thanh) OR (ban thanh)) ((vai cua) OR (lai chau)) tre.
• Adding a wildcard symbol may retrieve word variants: toc sach ky dang bat loi. hieu ve cam xuc ((le thanh) or (ban thanh)) ((vai cua) or (lai chau)) tre*.