Perhaps you should try some spelling variations:
"savings operations research : july 2006" » "savings options research : july 2006", "services operations research : july 2006", "savings ratios research : july 2006", "savings operations research : july 2008", "savings operations research : july 2007", "savings operations research : july 2009"
"mali opinion research : july 2013" » "mali action research : july 2013", "facie opinion research : july 2013", "mali options research : july 2013"

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