Perhaps you should try some spelling variations:
"world networks discussion paper" » "world networks diffusion paper", "world networks session paper", "world networks decision paper", "world network discussion paper"
"3rd workshop discussion papers" » "3rd workshop discussions papers", "3rd workshop session papers", "3rd workshop discussion part", "3rd workshop discussion panel", "2nd workshop discussion papers", "third workshop discussion papers", "4th workshop 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 networks discussion paper") OR ("3rd workshop discussion papers"))*.
• Removing quotes may allow a broader search: (( world networks discussion paper ) or ( 3rd workshop discussion papers ))*.