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