Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van chat » cao chat
chat xuc » chat huu, cam xuc, chao xu
thanh vi » thanh va, thanh ve, nhanh vi
ve triet » va trien, su triet
tu sach » thu sach, su sach, te sach
y nang » ky nang, ly nang, v nang
nang o » nang co, nang ho, nang ro
xuc va » duc va, tuc va, luc va
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: tu sach y nang o hoi. hieu van chat xuc va ((thanh vi) OR (hanh vi)) ve triet~.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang o hoi. hieu van chat xuc va ((thanh vi) or (hanh vi)) ve triet*.