Perhaps you should try some spelling variations:
factor research » factors research, sector research, actors research
peace research » science research
multi factor » multi actor, multi sector, _ multifactor
multi peace » multi page, multi player, multi device
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: (( multi peace research : july 2012 ) or ( multi factor research : july 2007 ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( multi peace research : july 2012 ) OR ( multi factor research : july 2007 )).
• Adding a wildcard symbol may retrieve word variants: (( multi peace research : july 2012 ) or ( multi factor research : july 2007 ))*.