can’t see aditional themes in control panel

Could be a few things causing it. Have you altered any core files or wp-config in anyway?

Are the themes definitely valid, they have a style.css file with the required information filled in?

I’d recommend setting up a completely fresh WordPress installation. Copy each theme in one at a time and make sure they show up.

If they do, it’s most likely something wrong with your core setup/wp-config file.