You can search for books by title, author and keyword on Nagoya University Library Search (OPAC) on the Nagoya University Library website.
OPAC: https://opac.nul.nagoya-u.ac.jp/?lang=english
Check the basics like how to search library material on this page.
https://www.nul.nagoya-u.ac.jp/support/index_e.html
If you have a problem with searching, the library staff will help you.
Ask a librarian at the Reference and Interlibrary Loan Desk in Central Library or the reception desk in each department library.
https://www.nul.nagoya-u.ac.jp/guide/map/index_e.html
If you have any difficulties visiting libraries, try the Library Online Consultation.
https://www.nul.nagoya-u.ac.jp/guide/online_ref/trial/index_e.html