Keyword Phrases Vs Multiple Single Keywords

Im looking into improving my app keywords. Traditionally i have always done the following as an example (not actual)

photo,editing,filters

I was wondering would the following rank higher if all other factors were equal?

photo editing app,

Example 2 is a phrase compared to the first example. Would an exact phrase rank better than the algo combining multiple single keywords?

Keyword Phrases Vs Multiple Single Keywords
 
 
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