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

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 ( 23rd ((workshop discussion) OR (workshop session)) part )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( world works discussion papers ) or ( 23rd ((workshop discussion) OR (workshop session)) part ))".
• Adding a wildcard symbol may retrieve word variants: (( world works discussion papers ) or ( 23rd ((workshop discussion) OR (workshop session)) part ))*.