Perhaps you should try some spelling variations:
"working conference against random 2001" » "working conference amast random 2001", "working conference aist random 2001", "working conference brains random 2001", "working conference against random 2002", "working conference against freedom 2001"
"working inference against racism 2001" » "working conferences against racism 2001", "making inference against racism 2001", "during inference against racism 2001", "working influence against racism 2001", "working insurance against racism 2001", "working defence against racism 2001", "working inference against reactive 2001"
"doing inference against racism 2001" » "doing influence against racism 2001", "doing insurance against racism 2001", "doing defence against racism 2001", "doing difference against racism 2001", "during inference against racism 2001", "joint inference against racism 2001", "doing inference against reactive 2001"

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