Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
danh vi » hanh vi, dinh vi, danh di
hieu ve » hieu va, hieu van
so sach » so sanh, bo sach, co sach
sach v » sach va, sach y, sach 2
ma hoi » mai hoi, ma hoa, me hoi
xac va » tac va, ac va, bac va
luc va » duc va, tuc va, loc va
v nang » va nang, vu nang, van nang
vi cua » vai cua, di cua
ve cam » ve cham, ve cac, va cam

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: so sach v nang ((ma hoi) OR (xa hoi)). hieu ve cam ((xac va) OR (luc va)) danh vi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach v nang ((ma hoi) OR (xa hoi)). hieu ve cam ((xac va) or (luc va)) danh vi cua triet~".
• Adding a wildcard symbol may retrieve word variants: so sach v nang ((ma hoi) OR (xa hoi)). hieu ve cam ((xac va) or (luc va)) danh vi cua triet*.