Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
hanh sua » hinh su, hanh va, hanh tu
va hanh » van hanh, va thanh, va danh
cam luc » cam xuc, cau luc
hieu va » lieu va, hieu qua
su sach » so sach, vu sach
hieu ve » hieu van
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang
luc va » duc va, tuc va, loc va
sua va » suat va, vua va, xua va
x hoi » xa hoi, o hoi, x ho

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 sach ((y nang) OR (v nang)) x hoi. ((hieu ve) OR (hieu va)) cam luc va hanh sua va triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((y nang) OR (v nang)) x hoi. ((hieu ve) or (hieu va)) cam luc va hanh sua va triet~".
• Adding a wildcard symbol may retrieve word variants: su sach ((y nang) OR (v nang)) x hoi. ((hieu ve) or (hieu va)) cam luc va hanh sua va triet*.