get across vs touch base

get across

verb
  • To cross; to move from one side (of something) to the other, literally or figuratively. 

  • To make an idea evident; to successfully explain a thought or feeling; put over. 

touch base

verb
  • To touch a base, usually with a foot but sometimes with a hand. 

  • To meet or make contact with someone, usually to consult, review, visit, or communicate. 

How often have the words get across and touch base occurred in a corpus of books? (source: Google Ngram Viewer )