I am looking for a way for people to select from a list of categories or tags, where they can select all that apply and are then taken to a page with only posts listed in all selected categories or tags.
If that is impossible, I'd like to find a way to search for posts in multiple categories, or with multiple tags. For example: search for a post tagged ogre AND green, or in the categories ogre AND green. Is it possible to do this on wordpress.com?
The blog I need help with is wayangjava.wordpress.com.