Perhaps you should try some spelling variations:
"multi option research : july 2007" » "multi opinion research : july 2007", "multi action research : july 2007", "multi optics research : july 2007", "multi location research : july 2007", "multi population research : july 2007", "multi ratios research : july 2007", "multi option research : july 2008", "multi option research : july 2013", "multi option research : july 2012"
"multi a research : july 2007" » "multi 2 research : july 2007", "multi a research : july 2008", "multi a research : july 2013", "multi a research : july 2012", "multi arc research : july 2007", "multi day research : july 2007", "multi bi research : july 2007"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("multi a research : july 2007") or ("multi option research : july 2007"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("multi a research : july 2007") OR ("multi option research : july 2007")).
• Removing quotes may allow a broader search: (( multi a research : july 2007 ) or ( multi option research : july 2007 )).
• Adding a wildcard symbol may retrieve word variants: (("multi a research : july 2007") or ("multi option research : july 2007"))*.