Perhaps you should try some spelling variations:
"mode factsr" » "mode factor", "model factor", "modes factor"
"de factor" » "e factor", "dose factor", "mode factor", "de factr", "de factsr"
"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 ("mode factsr"))) OR ("de facto"))) OR ("de fait")).
• Removing quotes may allow a broader search: (((((( de factor ) or ( mode factsr ))) or ( de facto ))) or ( de fait )).
• Adding a wildcard symbol may retrieve word variants: (((((("de factor") or ("mode factsr"))) or ("de facto"))) or ("de fait"))*.