minimize vs phase down

minimize

verb
  • To make (something) smaller or as small as possible; shrink; reduce. 

  • To treat (someone) in a slighting manner. 

  • To relegate or assign (something) to a less insignificant status; diminish. 

  • To remove (a window) from the main display area, collapsing it to an icon or caption. 

phase down

verb
  • To gradually reduce the size or scale of 

How often have the words minimize and phase down occurred in a corpus of books? (source: Google Ngram Viewer )