Perhaps you should try some spelling variations:
van doanh » toan doanh, van dong, van anh
van thanh » ban thanh, van tuan
tu sach » thu sach, su sach, te sach
va tham » van tham, va thanh, va thuat
cua tre » cua te, cuu tre, cua triet
va cham » va chat
y xang » ty xang
xang x » nang x
x hoi » xa hoi, o hoi, x ho
d cua » de cua, do cua, da 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: tu sach y xang x hoi. hieu ((va cham) OR (va tham)) cuu ((van doanh) OR (van thanh)) d cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y xang x hoi. hieu ((va cham) or (va tham)) cuu ((van doanh) OR (van thanh)) d cua tre~".
• Adding a wildcard symbol may retrieve word variants: tu sach y xang x hoi. hieu ((va cham) or (va tham)) cuu ((van doanh) OR (van thanh)) d cua tre*.