My first level tutorial - SM_Exo_Bridge doesn't show up

Hello, I’m taking the UE4 tutorials and trying to do what I see in them in UE but on the first level tutorial when he searches for the bridge nothing comes up for me. I’m very new to UE and have only used dreams so I don’t know much about any of this. Could someone please explain to me why I’m not getting the things to show up that he is? Thanks