Perhaps you should try some spelling variations:
"mode factor" » "model factor", "models factor", "model factors", "mode factoor", "mode faitor", "moe factor"
"de factsr" » "de facteur", "de facto", "de faits", "de factosr", "de faitsr", "e factsr"
"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 ((("de factsr") OR ("mode factor")))).
• Removing quotes may allow a broader search: (( de fact ) or ((( de factsr ) or ( mode factor )))).
• Adding a wildcard symbol may retrieve word variants: (("de fact") or ((("de factsr") or ("mode factor"))))*.