You can search the moon by entering a known area, or with a set of co-ordinates.  Below you'll find some examples of the syntax required.  Not all named places on the moon are searchable here, but the common ones are.

Area, eg - "Tranquility" , "Hercules"

Co-ordinates, eg - "-28.2334, 153.5315"
                         - "38 13' S, 145 3' E"