Nothing’s coming back for me on the forums here that covers my issue, but please do point me at it if it exists.
The issue is that in the default search (not Advanced Search), Items are not being returned. I’ve got an Item that is a person’s metadata, with William in the dc:title field. But when I search William in the default search box, only the pages that mention this person come back. When I toggle the “Search Type” setting in the Site Settings to be All Sites, the Item with that as the dc:title comes back. This suggests to me that the Item is not assigned to the site, but when I look at the resources attached to the site (Site admin → Resources → click on the number), it’s there. The “Search Resources” setting has Site Pages, Items, and Item Sets selected.
Search result page = index/search?fulltext_search=william (lacks the pertinent Item)
Advanced search results page = item?property[0][joiner]=and&property[0][property]=1&property[0][type]=in&property[0][text]=William&submit=Search (lacks the pertinent Item)
(Apologies if this is a little muddled. I’m trying to condense it for forum readability.)