There has been a recent documentation change on how to filter search results based on Authoring templates
Prior documentation had indicated using the + character when specifying the authoring template within the scope document
+AuthoringTemplate::"TEMP-Article"
It should be ^ character instead . So specifying search results on authoring template TEMP-Article will be accurately represented as follows
^AuthoringTemplate::"TEMP-Article" .
^AuthoringTemplate::"TEMP-Article" .
More comprehensive scenario and examples can be found here
Filtering search results http://www-10.lotus.com/ldd/portalwiki.nsf/dx/Filtering_search_results_wcm7
Filtering search results http://www-10.lotus.com/ldd/portalwiki.nsf/dx/Filtering_search_results_wcm7