Perhaps you should try some spelling variations:
visual regions » visual response, visual neurons, visual responses
error visual » mirror visual, prior visual, errors virtual
best world » post world, best worst, next world
net world » next world, text world, net worth
die error » doe error, drive error, wise error

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