Perhaps you should try some spelling variations:
"_ multinationals research : july 2009" » "_ binational research : july 2009", "_ multinationals report : july 2009", "_ multinationals research : july 2008", "_ multinationals research : july 2007", "_ multinationals research : july 2019"
"multi vaccine research : july 2009" » "multi medicine research : july 2009", "anti vaccine research : july 2009", "multiple vaccines research : july 2009", "multi vaccine research : july 2008", "multi vaccine research : july 2007", "multi vaccine research : july 2019"

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: (("_ multinationals research : july 2009") OR ("multi vaccine research : july 2009"))~.
• Removing quotes may allow a broader search: (( _ multinationals research : july 2009 ) or ( multi vaccine research : july 2009 ))~.
• Adding a wildcard symbol may retrieve word variants: (("_ multinationals research : july 2009") or ("multi vaccine research : july 2009"))*.