Perhaps you should try some spelling variations:
"meet vaccine research : july 2007" » "meet medicine research : july 2007", "media vaccine research : july 2007", "ant vaccine research : july 2007", "mr vaccine research : july 2007", "meet vaccine research : july 2008", "meet vaccine research : july 2013", "meet vaccine research : july 2012"
"multi climate research : june 2011" » "mali climate research : june 2011", "multi client research : june 2011", "bali climate research : june 2011", "multi climate research : june 2013", "multi climate research : june 2014", "multi climate research : june 2010"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("meet vaccine research : july 2007") or ("multi climate research : june 2011"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("meet vaccine research : july 2007") OR ("multi climate research : june 2011")).
• Removing quotes may allow a broader search: (( meet vaccine research : july 2007 ) or ( multi climate research : june 2011 )).
• Adding a wildcard symbol may retrieve word variants: (("meet vaccine research : july 2007") or ("multi climate research : june 2011"))*.