Perhaps you should try some spelling variations:
"de factor" » "e factor", "dose factor", "mode factor", "de factr", "de factsr"
"de faito" » "de faits", "de fato", "de faire", "de faitso", "le faito", "se faito"
"de fait" » "de faits", "le fait", "se fait"
"de facto" » "de fact", "de facts"

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 faito") OR ("de fait"))))) OR ("de facto")).
• Removing quotes may allow a broader search: (((( de factor ) or ((( de faito ) or ( de fait ))))) or ( de facto )).
• Adding a wildcard symbol may retrieve word variants: (((("de factor") or ((("de faito") or ("de fait"))))) or ("de facto"))*.