Perhaps you should try some spelling variations:
"making operations research : july 2012" » "banking operations research : july 2012", "mining operations research : july 2012", "farming operations research : july 2012", "making operations research : july 2013"
"mali action research : july 2006" » "mali national research : july 2006", "early action research : july 2006", "scale action research : july 2006", "mali options research : july 2006", "mali action research : july 2013", "mali action research : july 2011"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"making operations research : july 2012\") OR (\"mali action research : july 2006\"))~".
• Removing quotes may allow a broader search: (( making operations research : july 2012 ) OR ( mali action research : july 2006 ))~.
• Adding a wildcard symbol may retrieve word variants: (("making operations research : july 2012") OR ("mali action research : july 2006"))*.