Perhaps you should try some spelling variations:
"multiple options research : july 2009" » "multiple locations research : july 2009", "multiple positions research : july 2009", "multiple solutions research : july 2009", "multiple actions research : july 2009", "multiple optics research : july 2009", "multiple operations research : july 2009", "multiple options research : july 2008", "multiple options research : july 2007", "multiple options research : july 2019"
"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 2013"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("multiple options research : july 2009") OR ("multi action research : july 2006"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"multiple options research : july 2009\") OR (\"multi action research : july 2006\"))".
• Removing quotes may allow a broader search: (( multiple options research : july 2009 ) OR ( multi action research : july 2006 )).
• Adding a wildcard symbol may retrieve word variants: (("multiple options research : july 2009") OR ("multi action research : july 2006"))*.