I need to look up all nodes of a type "ts:folderSet" under other node.
So, using this TFS query (TYPE:"ts:folderSet") I obtain:

So, using last query, I'm getting all nodes of type "ts:folderSet".
I've tried adding another discjuntion on query:
TYPE:"ts:folderSet" and PARENT:"/app:company_home/st:sites/cm:luis-site/cm:documentLibrary/ts:applicationFolder-classificationBoard/tscb:classificacionBoard-classificacionBoard"
But it's getting empty:

Any ideas?