Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh vi » hanh vi, thanh va, thanh ve
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu ve » hieu van
hieu va » lieu va, hieu qua
cac loc » cac lop, cac toc, cac hoc
loc gia » luoc gia, toc gia, hoc gia
su cac » tu cac, su can, eu cac
su cao » cu cao, vu cao, su co
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: ((su cac) OR (su cao)) ky lang xa hoi. ((hieu ve) OR (hieu va)) cac loc gia thanh vi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su cac) OR (su cao)) ky lang xa hoi. ((hieu ve) or (hieu va)) cac loc gia thanh vi cua triet~".
• Adding a wildcard symbol may retrieve word variants: ((su cac) OR (su cao)) ky lang xa hoi. ((hieu ve) or (hieu va)) cac loc gia thanh vi cua triet*.