Google has dropped the instant search feature lately (in the news: the verge).
So, without the instant search how to navigate through the results of a normal google search only with the keyboard?
Note, that with the instant search this question is already answered on this Stackoverflow site.
You may find Chrome extension RESULTER good for this. It's basically a Google Search productivity extension.
Apart from bringing back the Tab and Arrows navigation keyboard shortcuts on Google Search results page, it introduces a special panel with search results. You can use Alt+A shortcut to open search results list and navigate from there, without going back to the Google Search page. It makes search flow more natural.
You can also focus on the search box with Alt+S keyboard shortcut.
