Stop collapsing duplicate site results
Please disable the trimming of duplicate results when searching for sites from the /_layouts/15/sharepoint.aspx page! Many sites are not shown in the results as they are considered to be duplicates by SharePoint Search. This is very confusing to end-users. I'm sure the problem is duplicates as I get all results if I search without trimming duplicates. I created a custom search page in the search center and configured the results web part not to trim duplicates. The search results then shows all relevant sites.
PLEASE fix this issue/bug asap.
Kirk Liemohn commented