Perhaps you should try some spelling variations:
left session » graft session, left decision
works papers » books papers, world papers, work paper
papers left » paper left, papers list
2008 part » 2008 paris, 2008 porto, 2008 pt
2008 a2 » 2008 a

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 a2) OR (2008 part)) works papers left session types.
• Adding a wildcard symbol may retrieve word variants: ((2008 a2) or (2008 part)) works papers left session types*.