come across vs show oneself

come across

verb
  • Used other than figuratively or idiomatically: see come, across. 

  • To find, usually by accident. 

  • To produce what was desired; come up with the goods. 

  • To give an appearance or impression; to project a certain image. 

  • To change sides; to cross over to work for the opposition. 

show oneself

verb
  • Used other than figuratively or idiomatically: see show, oneself. 

  • To expose one's genitalia, especially in an inappropriate setting; to expose oneself. 

How often have the words come across and show oneself occurred in a corpus of books? (source: Google Ngram Viewer )