Perhaps you should try some spelling variations:
"de factor" » "e factor", "dose factor", "mode factor", "de falcoor", "de faconor", "de factsr"
"de falcor" » "de falco", "die falcon", "de facon"
"de factr" » "de facteur", "de fazer", "de facon", "e factr", "de falcor", "de faconr"
"de fact" » "e fact", "de falco", "de facon"
"de facto" » "e facto", "de falcoo", "de facono", "de facts"
"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 facto"))) OR ("de fait"))) OR ((("de factor") OR ((("de factr") OR ("de falcor")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"de fact\") OR (\"de facto\"))) or (\"de fait\"))) or (((\"de factor\") or (((\"de factr\") or (\"de falcor\"))))))".
• Removing quotes may allow a broader search: (((((( de fact ) OR ( de facto ))) or ( de fait ))) or ((( de factor ) or ((( de factr ) or ( de falcor )))))).
• Adding a wildcard symbol may retrieve word variants: (((((("de fact") OR ("de facto"))) or ("de fait"))) or ((("de factor") or ((("de factr") or ("de falcor"))))))*.