Perhaps you should try some spelling variations:
"dose factor" » "noise factor", "one factor", "mode factor", "dosde factor", "dose factorr", "dosex factor"
"dex factor" » "sex factor", "dux factor", "index factor"
"e facto" » "de facto", "e factor", "ex facto"
"de fact" » "de facto", "de fait", "e 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: (((("e facto") OR ("de fact"))) OR ((("dex factor") OR ("dose factor")))).
• Removing quotes may allow a broader search: (((( e facto ) or ( de fact ))) or ((( dex factor ) or ( dose factor )))).
• Adding a wildcard symbol may retrieve word variants: (((("e facto") or ("de fact"))) or ((("dex factor") or ("dose factor"))))*.