keep out of sight vs tuck away

keep out of sight

tuck away

verb
  • To save or hoard (something); to hide (something) in a safe spot; to squirrel away. 

  • To be located in a remote, inaccessible or difficult-to-see spot. 

  • To eat a lot of (something). 

How often have the words keep out of sight and tuck away occurred in a corpus of books? (source: Google Ngram Viewer )