Perhaps you should try some spelling variations:
van tham » van thanh, van tuan, van chat
doanh va » doan va, doanh tai, doanh cua
doanh d » doanh _, doanh dao, doanh co
tu sach » thu sach, su sach, te sach
va cham » va chat, va tham
cua tre » cua te, cuu tre, cua triet
y xang » ty xang
xang x » nang x
x hoi » xa hoi, o hoi, x ho

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 (van tham)) cuu van ((doanh d) OR (doanh va)) 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 (van tham)) cuu van ((doanh d) OR (doanh va)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: tu sach y xang x hoi. hieu ((va cham) or (van tham)) cuu van ((doanh d) OR (doanh va)) cua tre*.