Keyboard shortcut to access google search field

I remember that I used google's shortcuts  feature to navigate links and focus to search field. But looks like there is not such feature.

but, you can at least easily access google's search field without anything preconfigured.

1) Type "hello" in google search filed
2) Press Enter.
3) Press "Space" to examine rest of the page on bottom.
4) Press "Backspace" key and you will be moved to search field with cursor in it. Clear content and type smth else.