Perhaps you should try some spelling variations:
"term education research : july 2013" » "term educational research : july 2013", "term population research : july 2013", "term action research : july 2013", "stem education research : july 2013", "reform education research : july 2013", "from education research : july 2013"
"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"

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: (("meet vaccine research : july 2009") OR ("term education research : july 2013"))~.
• Removing quotes may allow a broader search: (( meet vaccine research : july 2009 ) or ( term education research : july 2013 ))~.
• Adding a wildcard symbol may retrieve word variants: (("meet vaccine research : july 2009") or ("term education research : july 2013"))*.