Perhaps you should try some spelling variations:
"e factor" » "e factors", "one factor", "age factor"
"ex facto" » "sex factor", "ix factor", "x factor"
"5 facto" » "5 factor", "5 facts", "5 fact"
"de facto" » "de faito", "e facto", "de falcoo"
"de fact" » "de fait", "e fact", "de falco"

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: (((("de facto") OR ((((("5 facto") OR ("e factor"))) OR ("ex facto"))))) OR ("de fact")).
• Removing quotes may allow a broader search: (((( de facto ) or ((((( 5 facto ) or ( e factor ))) or ( ex facto ))))) or ( de fact )).
• Adding a wildcard symbol may retrieve word variants: (((("de facto") or ((((("5 facto") or ("e factor"))) or ("ex facto"))))) or ("de fact"))*.