Perhaps you should try some spelling variations:
multiple options » multiple locations, multiple positions, multiple solutions
options research » actions research, optics research, operations research
history research » study research
multi history » baltic history, multi storey, mri history
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: (( multiple options research : july 2009 ) or ( multi history research : july 2007 ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( multiple options research : july 2009 ) OR ( multi history research : july 2007 )).
• Adding a wildcard symbol may retrieve word variants: (( multiple options research : july 2009 ) or ( multi history research : july 2007 ))*.