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