I've some (manual created) collections in Bridge CS5. How can I search within such a collection? I want all photos, that have Keyword1 AND Keyword2.
The standard filter doesn't provide an AND-connection between multiple keywords (only an AND-connection between dirfferent parameter).
But within Collections the Find-Dialog seems to be disabled and could not be opened
Like Curt states, a collection is only a bunch of aliases referring to the original files. You best shot for a collection will be to create a smart collection (bringing up the same Find command) and with the plus sign select an extra key word search, enter both wanted keywords and be sure to include the main folder for your images for sorting (to include all files) and hit OK.
This creates a new (smart) collection with the files you want.