Perhaps you should try some spelling variations:
"dose factor" » "noise factor", "one factor", "mode factor", "dosa factor", "dos5 factor", "dos2 factor", "dose factsr"
"3 fact" » "3 facts", "3 fast", "3 face"
"de facto" » "da facto", "d5 facto", "d2 facto", "de facts"
"e fact" » "a fact", "5 fact", "2 fact"
"_ fact" » "_ facts", "_ face"

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