Perhaps you should try some spelling variations:
"de factor" » "de facto", "e factor", "dose factor", "de factoor", "one factor"
"de facon" » "de facto", "la facon", "en facon"
"de falco" » "de facto"
"de factr" » "de facto", "de facteur", "de fazer", "de factor", "e factr", "one factr"
"de fact" » "de facto", "e fact", "one 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: (((((((("de fact") OR ("de facon"))) OR ("de falco"))) OR ("de fait"))) OR ((("de factor") OR ((("de factr") OR ("de factor")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((((\"de fact\") OR (\"de facon\"))) or (\"de falco\"))) or (\"de fait\"))) or (((\"de factor\") or (((\"de factr\") or (\"de factor\"))))))".
• Removing quotes may allow a broader search: (((((((( de fact ) OR ( de facon ))) or ( de falco ))) or ( de fait ))) or ((( de factor ) or ((( de factr ) or ( de factor )))))).
• Adding a wildcard symbol may retrieve word variants: (((((((("de fact") OR ("de facon"))) or ("de falco"))) or ("de fait"))) or ((("de factor") or ((("de factr") or ("de factor"))))))*.