It's great that we can search for specific titles and authors at the main interface, but it would be so much more helpful if we could search for keywords or "group of words" that are in the actual text of the articles.
Is this possible? If not I may have to keep a backup of the articles on my computer to do these types of searches.
Full text search is coming with the desktop app. As far as searching for keywords you can search for them using the tag search term. For instance
If your keyword has multiple words you just need quotes