Perhaps you should try some spelling variations:
multiple imputations » multiple imputation
imputations research » operations research, population research, institutions research
client research » accident research, climate research, climatic research
multi client » multi plant, meet client
july 2007 » 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: (( multi client research : july 2007 ) or ( multiple imputations research : july 2007 ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( multi client research : july 2007 ) OR ( multiple imputations research : july 2007 )).
• Adding a wildcard symbol may retrieve word variants: (( multi client research : july 2007 ) or ( multiple imputations research : july 2007 ))*.