indico search will be reestablished in the next version upgrade of the software: https://getindico.io/roadmap/
For public events you may use either https://library.fnal.gov/indico-search/ or your browser's search engine: "your search string" site:indico.fnal.gov
Note: The OSG All-Hands Meeting 2020 has been rescheduled from March to Monday, 31 August through morning of Thursday, 3 September 2020. Soon, we will begin planning the new schedule and other details.
For more information, see https://opensciencegrid.org/all-hands/2020/.