call back vs recollect

call back

verb
  • To request someone's return. 

  • To telephone someone again at a more convenient time. 

  • To return to a shop or residence one has previously visited. 

noun
  • Request for a second interview or audition, following a successful initial interview. 

recollect

verb
  • To recall; to collect one's thoughts again, especially about past events. 

  • To compose oneself. 

How often have the words call back and recollect occurred in a corpus of books? (source: Google Ngram Viewer )