Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
hieu ve » hieu va, hieu van
tu sach » thu sach, su sach, tu cach
te sach » toc sach
cac bo » bac bo, cac co
bo van » vo van, so van, do van
vi cua » vai cua
di cua » dai cua, doi cua, de cua
ve cac » va cac, vien cac
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) OR (te sach)) ky nang x hoi. hieu ve cac bo van thanh ((vi cua) OR (di cua)) triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (te sach)) ky nang x hoi. hieu ve cac bo van thanh ((vi cua) OR (di cua)) triet~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ky nang x hoi. hieu ve cac bo van thanh ((vi cua) OR (di cua)) triet*.