Perhaps you should try some spelling variations:
"ian duncan scotus" » "ian duns scotus", "brian duncan scotus", "a duncan scotus", "innes duncan scotus"
"jon duncan scotus" » "jon duns scotus", "john duncan scotus", "j duncan scotus", "colin duncan scotus"
"ra duncan smith" » "ra duncan sir", "_ duncan smith", "mr duncan smith", "j duncan smith"
"ian duncan sarah" » "ian duncan adam", "ian duncan gray", "ian duncan shaw", "brian duncan sarah", "a duncan sarah", "innes duncan sarah"
"ian duncan scott" » "ian duncan stone", "brian duncan scott", "a duncan scott", "innes duncan scott"

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: (((("ra duncan smith") OR ("ian duncan sarah"))) OR ((("ian duncan scott") OR ((("ian duncan scotus") OR ("jon duncan scotus")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"ra duncan smith\") or (\"ian duncan sarah\"))) or (((\"ian duncan scott\") or (((\"ian duncan scotus\") OR (\"jon duncan scotus\"))))))".
• Removing quotes may allow a broader search: (((( ra duncan smith ) or ( ian duncan sarah ))) or ((( ian duncan scott ) or ((( ian duncan scotus ) OR ( jon duncan scotus )))))).
• Adding a wildcard symbol may retrieve word variants: (((("ra duncan smith") or ("ian duncan sarah"))) or ((("ian duncan scott") or ((("ian duncan scotus") OR ("jon duncan scotus"))))))*.