By default the database will return matches containing all words you enter in the search box.
You can exclude a word from your search by putting a minus sign ("-") immediately in front of the word you want to avoid.
Searches are not case sensitive.
will return all images of cathedrals in Barcelona.
will return all images of Barcelona but not of cathedrals.
Words of three letters or less will be ignored.
It is not necessary to use words such as 'photos', 'image's, 'pictures', etc. or to use link words such as 'the', 'with', 'and', etc.