oxidworks writes

The search field in Recoll has the following description: " Enter search terms here. Type ESC SPC for completions of current term "

But I could not find what SPC means.

medoc writes

Yes, it’s not too clear. This would be the space bar…

oxidworks writes

Thank you - now I can see it clearly - you definitively have to be an computer pro user to understand this. Primarily in countries with an other language then EN/US.