annoy vs vent one's spleen

annoy

verb
  • To do something to upset or anger someone; to be troublesome. 

  • To molest; to harm; to injure. 

  • To disturb or irritate, especially by continued or repeated acts; to bother with unpleasant deeds. 

vent one's spleen

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

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