This filter will open the links you have found on a search with Google in a new window; thereby not loosing your page with the search result in:
[Patterns]
Name = "Open Google new window"
Active = TRUE
URL = "
www.google.com/search?*"
Bounds = "<p><as*>"
Limit = 256
Match = "<p><a1>&"
"$URL(
www.google.com/search?(*&|)(as_|)q=([^&]+)2)"
Replace = "<p><a1 target=null>"
Best wishes
Arne