Perhaps you should try some spelling variations:
"mode factores" » "model factories", "more factors", "model factors", "mode factoes", "moe factores", "momode factores"
"dose factor" » "noise factor", "one factor", "mode factor"
"de factor" » "de facto", "e factor", "mode factor"
"de fait" » "de faits", "le fait", "se fait"

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