Dear wikilibrarians, 
during Wikimania I had the opportunity to speak with some developers who told me that, 
if in these years there has been an hard work on MediaWiki search engine (especially for optimizing it for Wikipedia and other projects), 
Wikisource as a project has always been omitted.
As far as I can tell, the search engine in Wikisource fails to understand clearly that Index: and Page: are *fundamental* namespaces,
and (at least in it.s, where we have an Author: namespace) it fails often in finding authors as well. 
I would like to ask you if some hacks or measures has been taken in your project, 
or if there is a solution we could ask together directly to the developers.