You need to meet certain criteria to allow your data items to be visible in search results.
Although it is possible to achieve that via configuration please bear in mind that none of the default templates contains layout, thus you will not be able to display them (when you open item using link) and there might be weird behaviours with links as root path of your site is normally
Home item, located directly under the site. What it means links to those data items will contain more than a minimal path and might expose content path.
Your data items have to use a template which inherits from
/sitecore/templates/Foundation/Experience Accelerator/Search/Computed Fields/_Searchable)
Thanks to this field, SXA will add computed field for each item during indexing.
Add associated content
If not specified explicitly search results will be narrowed to the current site.
You can extend it adding additional nodes to
Create appropiate rendering variant
It depends how you will consume your results. If you are going to display them on a page using default searach results rendering remember about valid Rendering Variant (notice
Text field, which is a part of
Rebuild tree/index and after that, you can consume your data items
Searching via search box (query)
If you need to filter items using search query (
q parameter) I think you will need a custom code.
Search phrase provided via
q parameter is used to search items in the index by comparing
sxacontent field. This is a computed field (
The problem I see is this line
if (!item.IsPageItem() && !IsPoi.Verify(item))
Computed field logic will return
null for items other than page items or POIs.
I think you will have to modify the code of
AggregatedContent class to include at least display name of your data item into the computed field.