At adobe stock contributors use singel tags. Are they better than tags in pairs?

That was helpfull. Thanks for your answer. I am pretty sure that keyword phrase are even more important at some other platforms who are selling not only thei mages but images on different products like shirts and others. Here it is helpfull to use a phrase including the desription of the image and for instance the product whre it is placed like a teeshirt or a coffecup. It seems logical. Adobe suggests only single  tags when I upload an image. But it is good to know that phrases like in your example could be more important than single keywords.

I know that most peeople are searching on google and bing. The question was what are they searching for when they look throw the million of stock images at adobe stock.