Browsing the Library
You can browse through the Stella library on the Problems page. You may filter the problems by their tags as well as a simple text search. The tag filters are split up into types: Problem Set, Course, and Topic. Additionally, the links in the sidebar allow you to quickly filter by any single tag.
The problems are sorted by their index number, and they are paginated with a fixed page size. Advanced text search and sorting/pagination options are not currently available but are in development.