Here in the UK we use the word ‘modules’, to refer to what you may know as courses, units, or classes. You can search the online module catalogue by College, School and Department to access the modules on offer in your chosen subject area. Keep in mind that Birmingham discipline areas will not necessarily be called the same thing as they are at your home institution, so think laterally when exploring the module catalogue.
For example, what some universities call 'Theatre', others call 'Drama' and some may call it 'Fine Arts'. 'Gender' or 'Women's Studies' may be under Sociology, or may be listed as a separate discipline. Kinesiology is more commonly called 'Sports Science' in the UK. Many more examples could be given, but the idea is that you should try various terms when looking at the catalogue.