Just type the name of a person, subject, place, and/or year that might be associated with the photo. You don't need to type in all of a word for a match to occur, but the search engine assumes all words (or partial words) must be present. If you are interested in seeing the latest photos, you may view photos uploaded in the past 30 days.

Hitting the "Find Photos" button will enable you to see thumbnails of all photos matching your query.