all over the map vs intentional

all over the map

prep
  • Widely scattered or distributed; numerous and differing greatly. 

  • In widely scattered directions; in a widely varying manner. 

intentional

adj
  • Done with intent. 

  • Intended or planned; done deliberately or voluntarily. 

How often have the words all over the map and intentional occurred in a corpus of books? (source: Google Ngram Viewer )