Perhaps you should try some spelling variations:
national research » educational research
medicine research » medical research, media research, vaccine research
multi national » multinationals _
anti medicine » one medicine, a medicine, amp medicine
july 2009 » july 2008, july 2007, july 2019

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( multi national research : july 2009 ) or ( anti medicine research : july 2009 ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( multi national research : july 2009 ) OR ( anti medicine research : july 2009 )).
• Adding a wildcard symbol may retrieve word variants: (( multi national research : july 2009 ) or ( anti medicine research : july 2009 ))*.