Perhaps you should try some spelling variations:
"meet vaccine research : july 2009" » "meet medicine research : july 2009", "media vaccine research : july 2009", "ant vaccine research : july 2009", "mr vaccine research : july 2009", "meet vaccine research : july 2008", "meet vaccine research : july 2007", "meet vaccine research : july 2019"
"meet climate research : july 2011" » "best climate research : july 2011", "deep climate research : july 2011", "heat climate research : july 2011", "meet climate research : july 2013", "meet climate research : july 2012", "meet climate research : july 2015"

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: "((\"meet climate research : july 2011\") OR (\"meet vaccine research : july 2009\"))~".
• Removing quotes may allow a broader search: (( meet climate research : july 2011 ) OR ( meet vaccine research : july 2009 ))~.
• Adding a wildcard symbol may retrieve word variants: (("meet climate research : july 2011") OR ("meet vaccine research : july 2009"))*.