This conversation has been merged. Please reference the main conversation: Lightroom: Bug in text filter Caption Ends With
Similar examples such as 'Folder' 'ends with' 'Test Lucia' return all photos that are under the root 'Test Photos' and have 'Lucia' somewhere in the folder name.
As far as I can tell so far there is no difference between using contains all and ends with. Or starts with for that matter.
(v4.3 64-bit on Win8 64-bit)