What is MyLibrary!
I can't find a book series on MyLibrary, but you do own it.
To use the MyLibrary! app go to this page for instructions: https://www.tolibrary.org/services/borrower-services/mylibrary-app
The app can be used to hold an electronic copy of your library card.
The app search function is a keyword search that locates the word(s) anywhere in the record.
To more accurately search for series, you may want to add the word "series" to the series title, particularly if it is a one-word series title.