Perhaps you should try some spelling variations:
"marcus morton a" » "mark morton a", "marcus morton _", "marcus morton h", "marcus barton a"
"marcus merton a" » "marcus aaron a", "marcus morgan a", "marcus perrin a"
"march 11th a" » "march 13th a", "march 14th a", "march 11 a", "march 11th ag", "march 11th _", "march 11th day"

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: (((("marcus morton a") OR ("marcus merton a"))) OR ("march 11th a")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"marcus morton a\") OR (\"marcus merton a\"))) or (\"march 11th a\"))".
• Removing quotes may allow a broader search: (((( marcus morton a ) OR ( marcus merton a ))) or ( march 11th a )).
• Adding a wildcard symbol may retrieve word variants: (((("marcus morton a") OR ("marcus merton a"))) or ("march 11th a"))*.