Perhaps you should try some spelling variations:
"dose factor" » "noise factor", "one factor", "mode factor", "dos_ factor", "dosa factor", "dos5 factor"
"d_ facto" » "de facto", "_ facts", "_ fact"
"3 fact" » "3 facts", "3 fast", "3 face"
"e fact" » "_ fact", "a fact", "5 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: (((("dose factor") OR ("d_ facto"))) OR ((("3 fact") OR ("e fact")))).
• Removing quotes may allow a broader search: (((( dose factor ) or ( d_ facto ))) or ((( 3 fact ) or ( e fact )))).
• Adding a wildcard symbol may retrieve word variants: (((("dose factor") or ("d_ facto"))) or ((("3 fact") or ("e fact"))))*.