Perhaps you should try some spelling variations:
sach hoi » sach doi, sach moi, cach thoi
cham cuu » cap cuu, chat cua
dang xay » dang van, van xay
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
ve cham » va cham, ve chat, vu cham
te sach » toc sach
hieu ve » hieu va, hieu van
lang xa » lang ha, lang van
cua tre » cua te, cuu tre, cua triet
cuu va » cuu van, cuu ve
vi cua » vai cua, di 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: te sach hoi ((lang xa) OR (dang xay)) hoi. hieu ve cham cuu va danh vi cua tre~.
• Adding a wildcard symbol may retrieve word variants: te sach hoi ((lang xa) or (dang xay)) hoi. hieu ve cham cuu va danh vi cua tre*.