Perhaps you should try some spelling variations:
actor research » actors research, factors research, action research
iea research » a research, 2 research, 2.1 research
multi actor » multi sector
multi iea » multi area, multi head, multi item
july 2007 » july 2013, july 2012, july 2020
july 2008 » july 2013, july 2012, 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: (( multi iea research : july 2007 ) or ( multi actor research : july 2008 ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( multi iea research : july 2007 ) OR ( multi actor research : july 2008 )).
• Adding a wildcard symbol may retrieve word variants: (( multi iea research : july 2007 ) or ( multi actor research : july 2008 ))*.