As it stopped working with the redesign of the google pages, here comes an updated variant. It reduces the top navigation bar to a tiny blue dot in the upper-left corner so you see more of the results (essentially about 2-3 lines) - just move your mouse over this spot to regain that menu.

Remark: It seems sometimes this also hides the search term input (does so on my Linux machine when not signed-in to Google, but not on the office PC running Windows). But this is also regained when moving the mouse pointer ofer the dot...