Includes content visible in search

Hi.

We want to have a centralized space for specific content, then use the Includes macro to insert the content across multiple spaces. How can we get the Includes content to display in search results on the individual spaces? All spaces are on the same server, running Scroll Versions 3.14.4 and Viewport 2.16 on Confluence Data Center. The Viewport is based on the Web Help theme. We do not currently have translations enabled. 

Thanks!