Perhaps you should try some spelling variations:
"dose factsr" » "dose factor"
"de factor" » "de facto", "e factor", "dose factor", "dde factor", "de factorr", "dex factor", "de factoor", "de faitor"
"dex facto" » "de facto", "ex facto", "sex 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: (((((("de factor") OR ("dose factsr"))) OR ((("dex facto") OR ("e facto"))))) OR ("de fact")).
• Removing quotes may allow a broader search: (((((( de factor ) or ( dose factsr ))) or ((( dex facto ) or ( e facto ))))) or ( de fact )).
• Adding a wildcard symbol may retrieve word variants: (((((("de factor") or ("dose factsr"))) or ((("dex facto") or ("e facto"))))) or ("de fact"))*.