I have images of two people. In the description fields, I have entered their names. They are:
Clint Macbeth
Keith Macbeth
Using the Advanced Search form, if I enter "Keith Macbeth" in the search_keywords form field and click the "AND" search constructor radio button, I get all images from both people. If I enter "Keith AND Macbeth" in the search_keywords form field, I get only the images of "Keith Macbeth".
So what purpose does the "search constructor" serve?