Perhaps you should try some spelling variations:
league robots » league robot, league boots, league robocup
pareto world » parent world, carlo world
patent world » parent world, patient worlds, agent world
robots three » roots three, robotics three, robotic three
home league » hockey league

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 ((pareto world) OR (patent world)) home league robots three*.