Perhaps you should try some spelling variations:
"sex factor" » "sex factors", "six factor", "six factors", "six factorr", "sde factor", "sx factorr"
"ex facto" » "ix factor", "de facto", "x factor"
"e facto" » "de facto", "e factor", "e fact"
"de fait" » "de faits", "le fait", "se fait"

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 ("sex factor"))))) OR ("de fait")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"e facto\") or (((\"ex facto\") OR (\"sex factor\"))))) or (\"de fait\"))".
• Removing quotes may allow a broader search: (((( e facto ) or ((( ex facto ) OR ( sex factor ))))) or ( de fait )).
• Adding a wildcard symbol may retrieve word variants: (((("e facto") or ((("ex facto") OR ("sex factor"))))) or ("de fait"))*.