Perhaps you should try some spelling variations:
"multi climatic research : july 2006" » "multi climate research : july 2006", "multi climatic research : july 2008", "multi climatic research : july 2007", "multi climatic research : july 2009"
"multi option research : july 2006" » "multi opinion research : july 2006", "multi action research : july 2006", "multi optics research : july 2006", "multi location research : july 2006", "multi population research : july 2006", "multi ratios research : july 2006", "multi option research : july 2008", "multi option research : july 2007", "multi option research : july 2009"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"multi option research : july 2006\") OR (\"multi climatic research : july 2006\"))~".
• Removing quotes may allow a broader search: (( multi option research : july 2006 ) OR ( multi climatic research : july 2006 ))~.
• Adding a wildcard symbol may retrieve word variants: (("multi option research : july 2006") OR ("multi climatic research : july 2006"))*.