Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
van hanh » van thanh, ban hanh, van anh
sach ty » sach y, sach tu, sach thu
ty danh » ty doanh, ty anh, ky danh
cho hoc » co hoc, khoa hoc
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
ve cac » va cac, vien cac
di cua » doi cua, de cua, do cua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ty danh cho hoc. hieu ve cac xuc van hanh ((di cua) OR (dai cua)) cau~.
• Adding a wildcard symbol may retrieve word variants: toc sach ty danh cho hoc. hieu ve cac xuc van hanh ((di cua) or (dai cua)) cau*.