Perhaps you should try some spelling variations:
location research » locations research, education research, taxation research
action research » national research
multi location » multi option, multiple locations, multiplication _
multi action » multi actor, multi option, multi factor
july 2006 » july 2008, july 2007, july 2009

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( multi location research : july 2006 ) or ( multi action research : july 2006 ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( multi location research : july 2006 ) OR ( multi action research : july 2006 )).
• Adding a wildcard symbol may retrieve word variants: (( multi location research : july 2006 ) or ( multi action research : july 2006 ))*.