If you create a Thortspace account and log in (you can use Thortspace locally without doing this), and then either set a sphere to be public, or else become a subscriber, then the cloud service will will enable full-text search of all the content of your spheres. Then when you do a sphere search for a given text you’ll find all the spheres containing that text in thorts or groups, not just sphere titles.
(7) How to … use the Search tab in Thortspace to find and link related spheres
Andrew has been thinking about what to do for a family holiday…
Otherwise, the search text when search for spheres is just applied to the sphere name.
Having found spheres that match a given text, you can now search within a sphere for thorts or groups matching the text by switching to the Thorts list of the search tab. You may have to re-enter or copy-and-paste the search text into the search box for thorts (unfortunately).