Perhaps you should try some spelling variations:
actions research » action research, actional research, actors research
multi factor » multi sector, _ multifactor, multi faceted
multi actor » multi sector
rl actions » re actions, 2 actions, 3 actions
july 2006 » july 2008, july 2007, july 2009
july 2011 » july 2013, july 2012, july 2015

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( rl actions research : july 2006 ) or ( ((multi factor) OR (multi actor)) research : july 2011 ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( rl actions research : july 2006 ) OR ( ((multi factor) OR (multi actor)) research : july 2011 )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( rl actions research : july 2006 ) or ( ((multi factor) OR (multi actor)) research : july 2011 ))".
• Adding a wildcard symbol may retrieve word variants: (( rl actions research : july 2006 ) or ( ((multi factor) OR (multi actor)) research : july 2011 ))*.