I am setting up Facets for my Drupal view and I want to combine and search together on 2 fields: I want the facet to combine field_research_title and field_research_author. Is it possible to setup this way? If yes, how to setup a facet that combines 2 fields of same content type?
On facets section /admin/config/search/facets/, you have an option to combine facets.
First, you have to edit one facet to see this option.
You can combine facets here,You have already tried?