Perhaps you should try some spelling variations:
visual regions » visual response, visual neurons, visual responses
visual regime » fiscal regime, tidal regime, signal regime
net world » next world, best world, text world
die prior » die priori, diego prior, die primar

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: 2008 ((net world) OR (post world)) die prior ((visual regime) OR (visual regions)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "2008 ((net world) or (post world)) die prior ((visual regime) OR (visual regions))".
• Adding a wildcard symbol may retrieve word variants: 2008 ((net world) or (post world)) die prior ((visual regime) OR (visual regions))*.