egomania vs self-seeking

egomania

noun
  • Excessive vanity, pride or arrogance; self-importance. 

self-seeking

noun
  • The selfish promotion of one's own interests. 

adj
  • Mindful of, or promoting, only one's own interests. 

  • That searches for a target automatically. 

How often have the words egomania and self-seeking occurred in a corpus of books? (source: Google Ngram Viewer )