Perhaps you should try some spelling variations:
"a.w brown" » "a.j brown", "a.b brown", "a brown"
"a.r brown" » "a.b brown", "j.r brown", "e.a.r brown"
"a.g brown" » "a.j brown", "a.b brown", "t.g browne"
"a.h brown" » "a.j brown", "a.b brown", "g.h brown"

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: (((("a.w brown") OR ("a.r brown"))) OR ((("a.g brown") OR ("a.h brown")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"a.w brown\") or (\"a.r brown\"))) or (((\"a.g brown\") OR (\"a.h brown\"))))".
• Removing quotes may allow a broader search: (((( a.w brown ) or ( a.r brown ))) or ((( a.g brown ) OR ( a.h brown )))).
• Adding a wildcard symbol may retrieve word variants: (((("a.w brown") or ("a.r brown"))) or ((("a.g brown") OR ("a.h brown"))))*.