Perhaps you should try some spelling variations:
later research » water research, litter research, matter research
multi later » multi layer, multi rater, multi lateral
july 2011 » july 2013, july 2015, july 2019
july 2012 » july 2013
july 2006 » july 2008, july 2009, 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 later research : ((((july 2011) or (july 2012))) or (((july 2006) OR (july 2007))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: multi later research : ((((july 2011) OR (july 2012))) OR (((july 2006) OR (july 2007)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "multi later research : ((((july 2011) or (july 2012))) or (((july 2006) OR (july 2007))))".
• Adding a wildcard symbol may retrieve word variants: multi later research : ((((july 2011) or (july 2012))) or (((july 2006) OR (july 2007))))*.