When you have multiple fund applications available, Search Filters allow the applicants to search for funding based on specific fund eligibility criteria(s), and to be able to locate only those funds that they are eligible for.
This keeps the applicant from having to scroll through pages of available applications in order to find only those that they are eligible for.
When the applicant searches on specific eligibility criteria(s), they are then directed to the appropriate application(s) that they qualify to apply for according to what they selected.
Search filters are mainly used in a 1:1 Application process, where the application they are applying to only applies to one funding source.