The search via the website www.oeaw.ac.at is a faceted search:
In the first input field you can enter a search term and use the filters (facets) below to limit the result.

Make a selection under the Person facet in order to find specific members or employees. With the page type facet you can select "Events" for a search for OeAW events, "News" for news from the OeAW and "Pages" for fixed pages within the OeAW website.