You will find a full list of NSERC's programs grouped by major program areas on NSERC's Web site. Please note that some programs do not exist today, but have been kept in the list for reference for previous years. These programs are identified by an (H) at the end of their names. More information on programs is available on NSERC's Web site.
For a more specific search on PGS-A or PGS-B scholarship awards, you can use the field Keywords in Award Title as a filter, and indicate PGSA or PGSB in this field.