Shortcut for searching all installed applications using debian/gnome?

I’d like to create a shortcut to launch the “desktop search” application (“Applications” -> “Accessories” -> “Desktop Search”) in debian/gnome. Does this shortcut exist (or can it be created) in debian / gnome? Furthermore, to create more shortcuts like this, how can I find the name of any application which I can find by clicking “Applications” and browsing the graphical UI for the applications (e.g. the terminal command google-chrome will open chrome’s GUI; I can also find chrome by going to “Applications” -> “Internet” -> “Google Chrome”)?

I’ve tried a few google queries (e.g. “terminal command for desktop search”), but I think the problem is that I don’t know what to query to find this information.