Perhaps you should try some spelling variations:
"ex facto" » "sex factor", "ix factor", "de facto"
"e facto" » "de facto", "e factor", "e fact"
"5 facto" » "5 factor", "5 facts", "5 fact"
"a fact" » "a face", "a factor"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("e facto") OR ("5 facto"))) OR ("ex facto"))) OR ("a fact")).
• Removing quotes may allow a broader search: (((((( e facto ) or ( 5 facto ))) or ( ex facto ))) or ( a fact )).
• Adding a wildcard symbol may retrieve word variants: (((((("e facto") or ("5 facto"))) or ("ex facto"))) or ("a fact"))*.