Perhaps you should try some spelling variations:
"de factoor" » "de facto", "de facteur", "de factooor", "e factoor", "de falcooor"
"e factor" » "e factors", "one factor", "age factor"
"de factr" » "de facto", "de facteur", "de fazer", "de factor", "e factr", "de falcor"
"de fact" » "de facto", "e fact", "de falco"
"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: (((("de fact") OR ("de fait"))) OR ((((("de factoor") OR ("e factor"))) OR ((("de factr") OR ((("de factoor") OR ("e factor")))))))).
• Removing quotes may allow a broader search: (((( de fact ) or ( de fait ))) or ((((( de factoor ) or ( e factor ))) or ((( de factr ) or ((( de factoor ) or ( e factor )))))))).
• Adding a wildcard symbol may retrieve word variants: (((("de fact") or ("de fait"))) or ((((("de factoor") or ("e factor"))) or ((("de factr") or ((("de factoor") or ("e factor"))))))))*.