Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hoc cac » hoc cao
hieu va » lieu va
y nang » ky nang, ly nang, v nang
nang o » nang co, nang ho, nang ro
xuc va » tuc va, luc va, xac va
dan vi » doan vi, don vi, dan va
vi cua » vai cua, di cua
cac y » cac ky, cac _, cap y
o hoi » co hoi, o hoc, o hai

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: hoc cac y nang o hoi. ((hieu va) OR (hieu qua)) cham ((xuc va) OR (duc va)) dan vi cua triet~.
• Adding a wildcard symbol may retrieve word variants: hoc cac y nang o hoi. ((hieu va) or (hieu qua)) cham ((xuc va) or (duc va)) dan vi cua triet*.