for keeps vs for the time being

for keeps

prep
  • With an agreement or intention to retain what one gains or receives. 

  • Permanently, so that one can keep something indefinitely. 

  • With a strong competitive resolve to win or succeed, as in sports or business. 

for the time being

adv
  • temporarily; for now; until later; until the situation changes; in an indefinite period of time. 

How often have the words for keeps and for the time being occurred in a corpus of books? (source: Google Ngram Viewer )