Perhaps you should try some spelling variations:
multinationals research » binational research, multinationals report
_ multinationals » _ multinational, multinationals _
curve research » course research, survey research, care research
multi curve » multi core, multiple curve
july 2009 » july 2008, july 2007, july 2019

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( multi curve research : july 2013 ) or ( _ multinationals research : july 2009 ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( multi curve research : july 2013 ) OR ( _ multinationals research : july 2009 )).
• Adding a wildcard symbol may retrieve word variants: (( multi curve research : july 2013 ) or ( _ multinationals research : july 2009 ))*.