Perhaps you should try some spelling variations:
"multiple options research : july 2013" » "multiple locations research : july 2013", "multiple positions research : july 2013", "multiple solutions research : july 2013", "multiple actions research : july 2013", "multiple optics research : july 2013", "multiple operations research : july 2013"
"multi client research : july 2013" » "multi accident research : july 2013", "multi climate research : july 2013", "multi current research : july 2013", "multi agent research : july 2013", "multi plant research : july 2013"

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: (("multi client research : july 2013") OR ("multiple options research : july 2013"))~.
• Removing quotes may allow a broader search: (( multi client research : july 2013 ) or ( multiple options research : july 2013 ))~.
• Adding a wildcard symbol may retrieve word variants: (("multi client research : july 2013") or ("multiple options research : july 2013"))*.