Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
viec dan » viec dang, viec dat, viec tang
viec ban » viec lam, viec va, viec tai
thuc cao » thuoc cao, thuc co, thuc can
dang vi » dung vi, dang va, hang vi
cua tre » cua te, cuu tre, cua triet
y xang » ty xang
xang x » nang x
vi cua » vai cua, di cua
x hoi » xa hoi, o hoi, x ho

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 y xang x hoi. nhieu ((viec dan) or (viec ban)) thuc cao dang vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach y xang x hoi. nhieu ((viec dan) OR (viec ban)) thuc cao dang vi cua tre.
• Adding a wildcard symbol may retrieve word variants: toc sach y xang x hoi. nhieu ((viec dan) or (viec ban)) thuc cao dang vi cua tre*.