clear out vs take off

clear out

verb
  • to leave quickly 

  • to become empty 

  • to remove or eject (from), especially forcibly 

  • To rob or steal from (someone). 

  • to completely empty 

  • To be victorious in gambling against (someone). 

take off

verb
  • To depart. 

  • To absent oneself from (work or other responsibility), especially with permission. 

  • To quantify. 

  • To remove. 

  • To leave the ground and begin flight; to ascend into the air. 

  • To imitate, often in a satirical manner. 

  • To become successful, to flourish. 

How often have the words clear out and take off occurred in a corpus of books? (source: Google Ngram Viewer )