Perhaps you should try some spelling variations:
"2nd workshop discussion paper" » "2nd workshop discussions paper", "2nd workshop session paper"
"world works discussion papers" » "world works discussion part", "world works discussion panel", "world work discussion papers", "world words discussion papers", "world workers discussion papers", "world wars discussion papers", "world world discussion papers", "world networks discussion papers"

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: (("world works discussion papers") OR ("2nd workshop discussion paper"))*.
• Removing quotes may allow a broader search: (( world works discussion papers ) or ( 2nd workshop discussion paper ))*.