When the UHM Library catalog does not provide detailed contents for collected works such as 全集, NDL Online Catalog is a good tool to see individual work in a set. For example, when you search 江戸川乱歩全集 by 平凡社 in the Library catalog, you cannot tell what works are included. Search NDL Catalog:
Click the first record, in this case 江戸川乱歩全集 12巻, scroll down and see the table of contents of this volume 12.