[Google Search] Keyboard shortcuts for google search results

After search on google,

J : move focus to the next result

K : move focus to the previous result

and after select a link

Enter : open the page in this tab

Ctrl + Enter : open in a new tab

Shift + Enter : open in a new window

Ctrl + Shift + Enter : open in a new tab and move to the tab

Alt + Enter : save the page

/ : move focus to the text input area

I don't know why, but these shortcut keys don't work on

www.google.com and www.google.co.kr

But they work on

www.google.de, www.google.fr, www.google.co.uk, www.google.co.jp, and so on.