The only thing I've tested with the new beta interface is the ability to search all books for a particular word or phrase at the top level. This has not been implemented. If I am looking to write a biography about a particular person, for example, who is mentioned in passing in n books in the archive and I search for this person, I will find a very small amount of these books, perhaps even zero.

If I go to a particular book, I can search -inside- that book for words/phrases. I would like to do with the raw text from all books.