Perhaps you should try some spelling variations:
"multi action research : july 2006" » "multi national research : july 2006", "multi actor research : july 2006", "multi option research : july 2006", "multi location research : july 2006", "multi action research : july 2008", "multi action research : july 2007", "multi action research : july 2009"
"multi labor research : july 2006" » "multi water research : july 2006", "multi prior research : july 2006", "multi layer research : july 2006", "multi label research : july 2006", "multi factor research : july 2006", "multi labor research : july 2008", "multi labor research : july 2007", "multi labor research : july 2009"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("multi action research : july 2006") or ("multi labor research : july 2006"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("multi action research : july 2006") OR ("multi labor research : july 2006")).
• Removing quotes may allow a broader search: (( multi action research : july 2006 ) or ( multi labor research : july 2006 )).
• Adding a wildcard symbol may retrieve word variants: (("multi action research : july 2006") or ("multi labor research : july 2006"))*.