speak to vs touch base

speak to

verb
  • To (figuratively) resonate with; to feel emotionally relevant to. 

  • To address a particular topic. 

  • To give evidence regarding something; to attest or provide evidence for; to bespeak. 

touch base

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

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

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