Perhaps you should try some spelling variations:
"dose factor" » "noise factor", "one factor", "mode factor", "dose factr"
"de facts" » "de faits", "cbe facts", "de fautes"
"de factr" » "de facteur", "de fazer", "de facon"
"de facto" » "de fact"

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