Perhaps you should try some spelling variations:
action research » national research
client research » accident research, climate research, current research
multi action » multi actor, multi option, multi location
multi client » multi agent, multi plant
july 2009 » july 2008, july 2019, july 2006
july 2007 » july 2008, july 2013, july 2012

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( multi action research : july 2009 ) or ( multi client research : july 2007 ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( multi action research : july 2009 ) OR ( multi client research : july 2007 )).
• Adding a wildcard symbol may retrieve word variants: (( multi action research : july 2009 ) or ( multi client research : july 2007 ))*.