Perhaps you should try some spelling variations:
"mode factor" » "model factor", "models factor", "model factory", "mod_ factor", "moda factor", "mod5 factor"
"23 factor" » "2.3 factor", "23 factors", "23 factory", "23 factsor", "23 fastor", "23 faceor"
"da facto" » "de facto", "a factor", "5 facto"
"e fact" » "_ fact", "a fact", "5 fact"
"3 fact" » "3 facts", "3 fast", "3 face"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"mode factor\") OR (((((\"da facto\") OR (\"23 factor\"))) OR (\"da facto\"))))) OR (((\"e fact\") OR (\"3 fact\"))))".
• Removing quotes may allow a broader search: (((( mode factor ) OR ((((( da facto ) OR ( 23 factor ))) OR ( da facto ))))) OR ((( e fact ) OR ( 3 fact )))).
• Adding a wildcard symbol may retrieve word variants: (((("mode factor") OR ((((("da facto") OR ("23 factor"))) OR ("da facto"))))) OR ((("e fact") OR ("3 fact"))))*.