Perhaps you should try some spelling variations:
"making options research : july 2006" » "making actions research : july 2006", "making optics research : july 2006", "making operations research : july 2006", "naming options research : july 2006", "making positions research : july 2006", "trading options research : july 2006", "making options research : july 2008", "making options research : july 2007", "making options research : july 2009"
"making using research : july 2011" » "making housing research : july 2011", "making doing research : july 2011", "making making research : july 2011", "making use research : july 2011", "making using research : july 2013", "making using research : july 2012", "making using research : july 2015"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("making using research : july 2011") OR ("making options research : july 2006"))~.
• Removing quotes may allow a broader search: (( making using research : july 2011 ) or ( making options research : july 2006 ))~.
• Adding a wildcard symbol may retrieve word variants: (("making using research : july 2011") or ("making options research : july 2006"))*.