Perhaps you should try some spelling variations:
"done factor" » "one factor", "dose factor", "zone factor", "done factr", "done factsr"
"mode factor" » "model factor", "models factor", "model factory", "mode factr", "mode factsr"
"e factsr" » "e factor", "e factors", "e factory"
"de facto" » "de fact", "de facts"

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 ((((("done factor") OR ("e factsr"))) OR ("mode factor")))).
• Removing quotes may allow a broader search: (( de facto ) or ((((( done factor ) or ( e factsr ))) or ( mode factor )))).
• Adding a wildcard symbol may retrieve word variants: (("de facto") or ((((("done factor") or ("e factsr"))) or ("mode factor"))))*.