Perhaps you should try some spelling variations:
"dex factor" » "sex factor", "dux factor", "index factor", "de factor", "ex factor", "sex factorr"
"dex facto" » "de facto", "ex facto", "sex factor"
"e facto" » "de facto", "e factor", "ex facto"
"de fact" » "de facto", "de fait", "e fact"

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