Perhaps you should try some spelling variations:
"de factor" » "de facto", "e factor", "dose factor", "de factoor", "de falcoor"
"de falcoo" » "de falco", "die falcon", "de facto"
"de fact" » "de facto", "e fact", "de falco"
"de fait" » "de faits", "se fait", "du fait"
"le fait" » "le faict"

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