Perhaps you should try some spelling variations:
"23rd workshop discussion paper" » "23rd workshop discussions paper", "23rd workshop session paper", "3rd workshop discussion paper", "2nd workshop discussion paper", "237 workshop discussion paper", "23rd workshop discussion papers"
"world workers discussion part" » "world blockers discussion part", "world work discussion part", "world markets discussion part", "world's workers discussion part", "world works discussion part", "work workers discussion part"

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 workers discussion part") OR ("23rd workshop discussion paper")).
• Removing quotes may allow a broader search: (( world workers discussion part ) or ( 23rd workshop discussion paper )).
• Adding a wildcard symbol may retrieve word variants: (("world workers discussion part") or ("23rd workshop discussion paper"))*.