The scene browser only shows scenes under the folder /Saves/scene, be that your local folder or inside the VAR.
If the location of the scene in the VAR is correct - subfolders also ok as long as inside the above - it should show on the Scene Browser. Or it could be that there's no scene in the VAR, not all VARs have scenes. For example, while most VARs of Looks have a accompanying scene to showcase it, there doesn't need to be one, just a appearance preset is enough.