Perhaps you should try some spelling variations:
"making options research : july 2009" » "making operations research : july 2009", "making action research : july 2009", "making opinion research : july 2009", "making positions research : july 2009", "savings options research : july 2009", "heating options research : july 2009", "making options research : july 2006", "making options research : july 2013", "making options research : july 2012"
"multi factor research : july 2009" » "multi sector research : july 2009", "multi action research : july 2009", "multi water research : july 2009", "_ multifactor research : july 2009", "multi faceted research : july 2009", "multi factor research : july 2006", "multi factor research : july 2013", "multi factor research : july 2012"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("making options research : july 2009") or ("multi factor research : july 2009"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("making options research : july 2009") OR ("multi factor research : july 2009")).
• Removing quotes may allow a broader search: (( making options research : july 2009 ) or ( multi factor research : july 2009 )).
• Adding a wildcard symbol may retrieve word variants: (("making options research : july 2009") or ("multi factor research : july 2009"))*.