Perhaps you should try some spelling variations:
hieu cua » hieu qua, dieu cua, bieu cua
hanh dai » hanh tai, hanh dao, vanh dai
va triet » va thiet, va trien, ve triet
te sach » toc sach
nang ma » tang ma, sang ma, nang cao
xuc van » duc van, vuc van, xuc ban
luc van » luoc van, luu van, duc van
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa
dai va » mai 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: te sach y nang ma hoi. hieu cua cac ((xuc van) OR (luc van)) hanh dai va triet~.
• Adding a wildcard symbol may retrieve word variants: te sach y nang ma hoi. hieu cua cac ((xuc van) or (luc van)) hanh dai va triet*.