Perhaps you should try some spelling variations:
"working conference against racism 2001" » "working inference against racism 2001", "working conference amast racism 2001", "working conference aist racism 2001", "working conference against rabies 2001", "working conference against reactive 2001"
"working conference against random 2001" » "working inference against random 2001", "working conference amast random 2001", "working conference aist random 2001", "working conference against random 2002", "working conference against freedom 2001"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"working conference against racism 2001\") OR (\"working conference against random 2001\"))".
• Removing quotes may allow a broader search: (( working conference against racism 2001 ) OR ( working conference against random 2001 )).
• Adding a wildcard symbol may retrieve word variants: (("working conference against racism 2001") OR ("working conference against random 2001"))*.