rage vs vent one's spleen

rage

verb
  • To act or speak in heightened anger. 

  • To move with great violence, as a storm etc. 

noun
  • Violent uncontrolled anger. 

  • A current fashion or fad. 

vent one's spleen

verb
  • To openly express pent-up anger, often on an unrelated matter or person. 

How often have the words rage and vent one's spleen occurred in a corpus of books? (source: Google Ngram Viewer )