Search single words.
To search multiple words, use AND between them. Example:
door and summer
lazarus and long
Don't use quote marks in search.
This search engine is temporary. At some point, the search engine will be enhanced so you will be able to do advanced searches, and to search within the documents. This will not be a small project as each of the several hundred thousand images in the Archives will need to be OCRed so the text in them can be read by the search engine.