Just in case when your keyboard is not working on your laptop or it could be the physical keyboard shortcut connected to your computer. It could also be a case when you are search on google in some other language in English.
As per google research many people are more comfortable in searching on google in their native language. Google has integrated virtual keyboard with google search in 35 languages including Hindi, Urdu, American English etc.
Type Using Virtual Keyboard In Google Search
In order to use virtual keyboard with google search, you would need to select language other than English in google search under search preferences.