Perhaps you should try some spelling variations:
"mode factorr" » "model factory", "model factors", "model factor", "model factorr", "models factorr", "model factoryr", "mode factor", "moe factorr", "modose factorr", "modde factorr", "mode factorrr", "modex factorr", "mode factoorr", "mode faitorr"
"mode factor" » "model factor", "models factor", "model factory", "mode facto", "moe factor", "modose factor", "modde factor", "mode factorr", "modex factor", "mode factoor", "mode faitor"
"de factor" » "de facto", "e factor", "dose factor", "dde factor", "de factorr", "dex factor", "de factoor", "de faitor"
"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 ((("mode factor") OR ("mode factorr"))))) OR ("e facto"))) OR ("de fact")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"de factor\") or (((\"mode factor\") OR (\"mode factorr\"))))) or (\"e facto\"))) or (\"de fact\"))".
• Removing quotes may allow a broader search: (((((( de factor ) or ((( mode factor ) OR ( mode factorr ))))) or ( e facto ))) or ( de fact )).
• Adding a wildcard symbol may retrieve word variants: (((((("de factor") or ((("mode factor") OR ("mode factorr"))))) or ("e facto"))) or ("de fact"))*.