acclaim vs sing the praises of

acclaim

verb
  • To salute or praise with great approval; to compliment; to applaud; to welcome enthusiastically. 

  • To express great approval (for). 

  • To elect (a politician, etc.) to an office automatically because no other candidates run; elect by acclamation. 

  • To declare by acclamations. 

noun
  • An acclamation; a shout of applause. 

sing the praises of

verb
  • to commend someone's attributes to others 

How often have the words acclaim and sing the praises of occurred in a corpus of books? (source: Google Ngram Viewer )