After searching for up-to-date books on my subject, I discovered Falvey didn't have any. What do I do?
In some cases it is a matter of rethinking the search terminology. However, the topic in this case was a male Catholic religious order, the Salesians, and Falvey indeed has very few books on them. After a quick search of the New Catholic Encyclopedia online under Guides > E-reference > Religion & Philosophy > New Catholic Encyclopedia, we read the short article and discovered two books in English which had been published recently listed in the bibliography at the end of the article, but these were indeed not in Flavey's collection of books. So we did a search for the titles in the WorldCat database. We found they were available locally, at St. Charles Seminary, by clicking on "Libraries worldwide that own item." The student was then able to click on the same WorldCat record the link to Interlibrary Loan, "Borrow from another library." We expect she will have the two scholarly histories she needs for her research paper on the Salesians of Don Bosco (a longer form of the name of the order she is researching) in a few days. ILL will notify her when they come in.