Perhaps you should try some spelling variations:
"dage factor" » "age factor", "damage factor", "gauge factor", "dage factors", "dagone factor", "dagage factor"
"e factor" » "e factors", "one factor", "age factor"
"de factr" » "de facto", "de facteur", "de fazer", "de factor", "de faitr", "e factr"
"de faitr" » "de fair", "de fait", "de faits"
"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 fact") OR ((((("dage factor") OR ("e factor"))) OR ((("de factr") OR ("de faitr")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"de fact\") or (((((\"dage factor\") or (\"e factor\"))) or (((\"de factr\") OR (\"de faitr\"))))))".
• Removing quotes may allow a broader search: (( de fact ) or ((((( dage factor ) or ( e factor ))) or ((( de factr ) OR ( de faitr )))))).
• Adding a wildcard symbol may retrieve word variants: (("de fact") or ((((("dage factor") or ("e factor"))) or ((("de factr") OR ("de faitr"))))))*.