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, just world
net world » text world, net worth, net works
die error » doe error, drive error, time error
next » text

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 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 world))) or (best world)) die error visual regions".
• Adding a wildcard symbol may retrieve word variants: 2008 ((((net world) OR (next world))) or (best world)) die error visual regions*.