Add the ability to search by pressing the tab button on your keyboard. This feature is currently on Google Chrome.
Start typing the address of the site you’d like to search (let’s stick with YouTube for this example). Assuming you’ve accessed YouTube in the past (what an outrageous assumption!), Chrome will auto complete the rest of the URL as soon as you start typing.
Once you see “youtube .com” in the address bar, you can press the Tab button on your keyboard to activate the search. The URL in the address bar will then convert to a search engine saying – “Search YouTube Video Search:” which is when you type in your query and hit enter. (TAKEN FROM THIS WEBSITE)