In Papers3, one could search by 'Keyword' but this feature is missing from the latest version of the Readcube app. My library is built on tags, so this would be helpful.
To search for keywords use the "tag" phrase. For instance if you have a tag called 'Research' you could search for it using 'tag:research'. If you want to search for multiple tags just add a AND keyword. For instance 'tag:Elephant AND tag:shark'
I want this to, this is what make tag's usefull
In this way it should be possible to make a combined search e.g. "tag:research AND tag:cancer"
@Kim. This is already implemented. Please reach out to support if you are having issues with this in your library. Thanks!