Type in what you want on Google. Ddo than what you are trying to findI can very rarely get any results to show up on the wiki when looking for items.
Like, say for example that I want to look for the item "Aetherband". I write Aetherband in the search field and the only thing that shows up in the search results is a link to the "Named item sets" page because it's mentioned there.
Same thing if I try Item:Aetherband which is what that shows up on the dropdown when writing in the search field.
It's like certain types of pages are being excluded from the search results even though I'm including all namespaces. It obviously knows the item and its page since it shows in the dropdown, but it still won't return it in the page results.