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", "multiple options research : july 2007", "multi option research : july 2008", "multi option research : july 2013", "multi option research : july 2012"
"multi ratios research : july 2007" » "multi rating research : july 2007", "multi relations research : july 2007", "multi actions research : july 2007", "multi radio research : july 2007", "multi rate research : july 2007", "multi pairs research : july 2007", "multi ratios research : july 2008", "multi ratios research : july 2013", "multi ratios research : july 2012"

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