Help with character movement

i’m having a trobble that when i press W or S my char goes fwd/bwd and when i press A or D my char goes to the sides, that’s ok, but when i press W+D (example) my char only moves forward, what i’m doing wrong??

This is the default movement of the tutorial character i think that I use for my character:

Este é o movimento padrão do caráter tutorial eu acho que eu uso para o meu personagem ( tradução do Google ) :

thanks man =D