Perhaps you should try some spelling variations:
"model factor" » "models factor", "model fast", "model factsr"
"de factor" » "e factor", "dose factor", "mode factor", "de falcoor", "de faconor", "de factsr"
"de faitor" » "de fair", "de faits", "de fato", "de faitsr", "de fator", "de fairer", "de faitsor", "le faitor", "se faitor"
"de faito" » "de faits", "de fato", "de faire", "de faitso", "le faito", "se faito"
"de fait" » "de faits", "le fait", "se fait"
"de facto" » "e facto", "de falcoo", "de facono", "de facts"
"de fact" » "e fact", "de falco", "de facon"

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