make a mountain out of a molehill vs overplay

make a mountain out of a molehill

verb
  • To treat a problem as greater than it is; to blow something out of proportion; to exaggerate the importance of something trivial. 

overplay

verb
  • To overdo or overact one's effect or role. 

  • To play (a song or record) too frequently. 

  • To accidentally hit (one's golf ball) beyond "the green". 

  • To overestimate one's strength in a game or event, which ultimately may end in a defeat. 

How often have the words make a mountain out of a molehill and overplay occurred in a corpus of books? (source: Google Ngram Viewer )