Google Search's keyboard shortcuts are so bad. I hope they learn from DuckDuckGo's. At least give users the option to navigate the search results with 'j' & 'k' like Gmail.
j and k are from vi where those were the arrow keys. h(left)j(down)k(up)l(right) are used in a lot of apps for the reason that a lot of programmers use vi keybindings.