Perhaps you should try some spelling variations:
location research » locations research, education research, action research
vaccine research » medicine research
multi location » multi option, multiple locations, multiplication _
anti vaccine » ant vaccine, active vaccine, aids vaccine
july 2012 » july 2013
july 2007 » july 2008, july 2013, july 2020

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( anti vaccine research : july 2012 ) or ( multi location research : july 2007 ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( anti vaccine research : july 2012 ) OR ( multi location research : july 2007 )).
• Adding a wildcard symbol may retrieve word variants: (( anti vaccine research : july 2012 ) or ( multi location research : july 2007 ))*.