Perhaps you should try some spelling variations:
"multi accident research : july 2009" » "multi current research : july 2009", "multi recent research : july 2009", "multi vaccine research : july 2009", "multi client research : july 2009", "multi accident research : july 2008", "multi accident research : july 2007", "multi accident research : july 2019"
"multi faceted research : july 2012" » "multi faceted search : july 2012", "multi focused research : july 2012", "multi facetted search : july 2012", "multi faceted research : july 2013"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("multi accident research : july 2009") or ("multi faceted research : july 2012"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("multi accident research : july 2009") OR ("multi faceted research : july 2012")).
• Removing quotes may allow a broader search: (( multi accident research : july 2009 ) or ( multi faceted research : july 2012 )).
• Adding a wildcard symbol may retrieve word variants: (("multi accident research : july 2009") or ("multi faceted research : july 2012"))*.