Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nham thuc » nhan thuc, nam thuc, pham thuc
nham thu » nam thu, pham thu, nhan thuc
lang van » dang van, tang van, hoang van
danh vi » hanh vi, dinh vi, danh di
xa danh » va danh, dia danh, nam danh
te sach » toc sach
lang xa » lang ha, dang xay
hieu ve » hieu va, hieu van
sach v » sach va, sach y, sach 2
vi cua » vai cua, di cua

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: te sach v ((lang xa) OR (lang van)) hoi. hieu ve ((nham thuc) OR (nham thu)) xa danh vi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach v ((lang xa) or (lang van)) hoi. hieu ve ((nham thuc) OR (nham thu)) xa danh vi cua triet~".
• Adding a wildcard symbol may retrieve word variants: te sach v ((lang xa) or (lang van)) hoi. hieu ve ((nham thuc) OR (nham thu)) xa danh vi cua triet*.