Perhaps you should try some spelling variations:
"4.4 browse" » "17.4 browse", "14 browse", "n.l browse"
"a.b brown" » "6.6 brown", "6.8 brown", "9.5 brown"
"4.4 brown" » "14 brown", "34 brown", "4.4 brain"
"2.2 brown" » "12 brown", "2.2 brain", "2.2 broy"

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.b brown") OR ((((("4.4 brown") OR ("4.4 browse"))) OR ("2.2 brown")))).
• Removing quotes may allow a broader search: (( a.b brown ) or ((((( 4.4 brown ) or ( 4.4 browse ))) or ( 2.2 brown )))).
• Adding a wildcard symbol may retrieve word variants: (("a.b brown") or ((((("4.4 brown") or ("4.4 browse"))) or ("2.2 brown"))))*.