The library catalog only looks for the words you enter in a few places --book title, author's name, publisher, and official subjects assigned to the book. Using broad, general search terms is usually better than being too specific.
Put the word AND between search terms:
"Arthur Miller" AND criticism
Use an asterisk (*) to find variations of a word. Crit* would find anything referring to critical, criticize, criticism, etc.
O'Brien AND crit*