I have read about the Pathfinder Chronicles that you can find (printed editions) in the Golarion setting. In Seekers of Secrets you can find the content of some editions summarized but I am wondering whether any of these have actually been printed in full as products I can purchase and/or read?
Not really, you cannot buy a physical real-world book for the Chronicles. It is meant to be a vessel for research and in-game motivation for adventure.
"This ancient item is described in the PF Chronicle," giving the GM a two part adventure: 1- Find and read the Chronicle 2- Find and retrieve the item.
You can also see the Chronicles as the stories written later about your players' exploits in the world...