Perhaps you should try some spelling variations:
"ex facto" » "sex factor", "ix factor", "de facto"
"e facto" » "de facto", "e factor", "5 facto", "_ facto", "3 facto"
"e fact" » "_ fact", "3 fact", "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 ("ex facto"))) OR ((("e fact") OR ("a fact")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"e facto\") or (\"ex facto\"))) or (((\"e fact\") OR (\"a fact\"))))".
• Removing quotes may allow a broader search: (((( e facto ) or ( ex facto ))) or ((( e fact ) OR ( a fact )))).
• Adding a wildcard symbol may retrieve word variants: (((("e facto") or ("ex facto"))) or ((("e fact") OR ("a fact"))))*.