Perhaps you should try some spelling variations:
"mode factors" » "model factors", "made factors", "models factors", "model factorss", "mode factorss", "modone factors", "modage factors", "mode faitors", "moe factors", "mode falcoors", "mode factsrs"
"mode factor" » "model factor", "models factor", "model factors", "mode factors", "modone factor", "modage factor", "mode faitor", "moe factor", "mode falcoor", "mode factsr"
"e factor" » "e factors", "one factor", "age factor", "e factsr"
"de facto" » "de faito", "e facto", "de falcoo", "de facts"
"de fact" » "de fait", "e fact", "de falco"

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: (((((("e factor") OR ((("mode factor") OR ("mode factors"))))) OR ("de facto"))) OR ("de fact")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"e factor\") or (((\"mode factor\") OR (\"mode factors\"))))) or (\"de facto\"))) or (\"de fact\"))".
• Removing quotes may allow a broader search: (((((( e factor ) or ((( mode factor ) OR ( mode factors ))))) or ( de facto ))) or ( de fact )).
• Adding a wildcard symbol may retrieve word variants: (((((("e factor") or ((("mode factor") OR ("mode factors"))))) or ("de facto"))) or ("de fact"))*.