Perhaps you should try some spelling variations:
"de factoor" » "de facteur", "e factoor", "de faconoor", "one factoor", "de factsor"
"de factor" » "e factor", "dose factor", "mode factor", "de faconor", "one factor", "de factsr"
"de factr" » "de facteur", "de fazer", "de facon", "e factr", "de faconr", "one factr", "de factor", "de fact", "de factors"
"de fact" » "e fact", "de facon", "one fact"
"de facto" » "e facto", "de facono", "one facto", "de facts"
"de fait" » "de faits", "le fait", "se fait"
"e factr" » "e factor", "e fact", "e factors"

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