Perhaps you should try some spelling variations:
vaccine research » medicine research
recent research » current research
meet recent » most recent, market recent, modest recent
july 2007 » july 2008, july 2013, july 2020
july 2012 » july 2013
july 2009 » july 2008, july 2019, july 2006

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( meet recent research : ((july 2007) OR (july 2012)) ) or ( media vaccine research : july 2009 ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( meet recent research : ((july 2007) OR (july 2012)) ) OR ( media vaccine research : july 2009 )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( meet recent research : ((july 2007) OR (july 2012)) ) or ( media vaccine research : july 2009 ))".
• Adding a wildcard symbol may retrieve word variants: (( meet recent research : ((july 2007) OR (july 2012)) ) or ( media vaccine research : july 2009 ))*.