Google provides an operator called ‘source:’, which can be used for this purpose.

The news source should be written after the ‘source:’, and the news topic should be right before the ‘source:’ operator.

As we know, there are hundreds of news sites which may be covering a particular story or a particular new agency which may have written hundreds of articles on the same topic.

For example, if you want the news related to ‘coronavirus’ and want the BBC as a source’., then you should write like [coronavirus source: BBC]. This will return first all the news about ‘coronavirus’ from ‘BBC’ website and afterwards if there is no more news left on the BBC site then it would show other website links which sourced BBC for coronavirus related news.