Perhaps you should try some spelling variations:
bach tuoc » sach duoc, sach nuoc
doanh van » doan van, doanh va, doanh ban
thien van » thi van
toc sach » hoc sach, doc sach, thuoc sach
va doanh » van doanh, vay doanh, va danh
van cua » vang cua, ban cua, dan cua
bac tuc » bac tu, bac thua
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang

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) OR (toc sach)) y nang xa hoi. thien van ((bac tuc) OR (bach tuoc)) va doanh van cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) y nang xa hoi. thien van ((bac tuc) or (bach tuoc)) va doanh van cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((te sach) OR (toc sach)) y nang xa hoi. thien van ((bac tuc) or (bach tuoc)) va doanh van cua tre*.