Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
su triet » su viet, su tien, ve triet
thanh ky » hanh ky, than ky, thanh tay
xuc van » duc van, luc van, vuc van
sach vu » sach tu, sach uu, sach xu
nang ma » tang ma, sang ma, nang cao
sach va » sach xa, sach ha, sach dao
ma hoi » mai hoi, xa hoi, ma hoa
va cao » va co, va dao, va bao

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 vu) OR (sach va)) nang ma hoi. hieu ((va cac) OR (va cao)) xuc van thanh ky su triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach vu) OR (sach va)) nang ma hoi. hieu ((va cac) or (va cao)) xuc van thanh ky su triet~".
• Adding a wildcard symbol may retrieve word variants: tu ((sach vu) OR (sach va)) nang ma hoi. hieu ((va cac) or (va cao)) xuc van thanh ky su triet*.