Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van hanh » van thanh, ban hanh, van anh
lang van » dang van, tang van, hoang van
luc van » luoc van, luu van, duc van
cam luc » cam xuc, cau luc
hieu va » lieu va, hieu qua
sach tu » sach thu, cach tu, sach ty
so sach » so sanh, bo sach, co sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu van
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: so sach tu ((nang xa) OR (lang van)) hoi. ((hieu ve) OR (hieu va)) cam luc van hanh vi cua triet~.
• Adding a wildcard symbol may retrieve word variants: so sach tu ((nang xa) or (lang van)) hoi. ((hieu ve) or (hieu va)) cam luc van hanh vi cua triet*.