Perhaps you should try some spelling variations:
world conference » working conference
against rabies » against racism
amast rabies » post rabies
man rabies » human rabies, many babies, a rabies

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 conference ((((amast rabies) OR (man rabies))) OR (against rabies)) 2001.
• The words AND, OR and NOT may confuse the search; try adding quotes: "world conference ((((amast rabies) OR (man rabies))) or (against rabies)) 2001".
• Adding a wildcard symbol may retrieve word variants: world conference ((((amast rabies) OR (man rabies))) or (against rabies)) 2001*.