Perhaps you should try some spelling variations:
session three » session types
design age » design agent, design aat, design aid
design als » design aat
acm world » acmet world, raum world, wcom world
2008 acm » 2008 a, 2008 a2, 2008 a1

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 acm world ((((design age) OR (design als))) OR (design a)) session three.
• The words AND, OR and NOT may confuse the search; try adding quotes: "2008 acm world ((((design age) OR (design als))) or (design a)) session three".
• Adding a wildcard symbol may retrieve word variants: 2008 acm world ((((design age) OR (design als))) or (design a)) session three*.