Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh vi » hanh vi, thanh ve, nhanh vi
thanh va » thanh van, hanh va, thanh ha
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 va » hoc va, luc va

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 cac ky lang xa hoi. ((hieu ve) OR (hieu va)) cac loc va ((thanh vi) OR (thanh va)) cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky lang xa hoi. ((hieu ve) or (hieu va)) cac loc va ((thanh vi) OR (thanh va)) cua triet~".
• Adding a wildcard symbol may retrieve word variants: tu cac ky lang xa hoi. ((hieu ve) or (hieu va)) cac loc va ((thanh vi) OR (thanh va)) cua triet*.