Perhaps you should try some spelling variations:
"multi option research : july 2013" » "multi opinion research : july 2013", "multi action research : july 2013", "multi optics research : july 2013", "multi location research : july 2013", "multi population research : july 2013", "multi ratios research : july 2013"
"multi care research : july 2007" » "multi change research : july 2007", "multi course research : july 2007", "multi peace research : july 2007", "multi core research : july 2007", "multi curve research : july 2007", "multi area research : july 2007", "multi care research : july 2008", "multi care research : july 2012", "multi care research : july 2020"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("multi care research : july 2007") or ("multi option research : july 2013"))~.
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