Perhaps you should try some spelling variations:
"modes factsr" » "modes factor", "models factor", "model factor"
"dose factor" » "noise factor", "one factor", "moore factor", "dose factr", "dose factsr"
"mode factor" » "model factor", "models factor", "model factory", "mode factr", "mode factsr"
"de facto" » "de fact", "de facts"

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