Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
su triet » su viet, su tien, ve triet
hieu van » hieu va, thien van, lieu va
thanh vi » hanh vi, thanh va, thanh ve
xuc van » duc van, luc van, vuc van
tu sach » thu sach, su sach, te sach
hieu ve » hieu va
ty nang » ty xang, ty hang, ly nang
ma hoi » mai hoi, xa hoi, ma hoa
vi su » va su, ve su, ki su

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