They are not on Anna’s Archive or on MaM. They are available for digital purchase from SpringerPub or Amazon.
Is there a different tracker for textbooks and reference materials?
How likely is it that a request will be fulfilled. Would someone need to buy the book themself and upload it?
I think those books are different textbooks with a similar name. Those torrents were added in 2020 or earlier, whereas this textbook was released this year.