Perhaps you should try some spelling variations:
session three » session types
works papers » books papers, world papers, workshop papers
left session » graft session, left decision
work paper » rock paper, work power, work peter
2008 art » 2008 part, 2008 3rd, 2008 a

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "2008 art ((works papers) OR (work paper)) left session three".
• Adding a wildcard symbol may retrieve word variants: 2008 art ((works papers) OR (work paper)) left session three*.