Perhaps you should try some spelling variations:
auction research » action research, actions research, fiction research
using research » housing research, doing research, making research
making using » making use
call auction » bill auction, bill auctions, value auction
july 2011 » july 2013, july 2012, july 2015
july 2006 » july 2008, july 2007, july 2009

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( making using research : july 2011 ) OR ( call auction research : july 2006 ))~.
• Adding a wildcard symbol may retrieve word variants: (( making using research : july 2011 ) or ( call auction research : july 2006 ))*.