Perhaps you should try some spelling variations:
"_ multinationals report : july 2012" » "_ multinationals pt : july 2012", "_ multinationales aspect : july 2012", "_ multinational motor : july 2012", "_ multinationals report : july 2013"
"multi vaccine research : july 2011" » "multi medicine research : july 2011", "anti vaccine research : july 2011", "multiple vaccines research : july 2011", "multi vaccine research : july 2013", "multi vaccine research : july 2015", "multi vaccine research : july 2019"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("_ multinationals report : july 2012") OR ("multi vaccine research : july 2011"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"_ multinationals report : july 2012\") OR (\"multi vaccine research : july 2011\"))".
• Removing quotes may allow a broader search: (( _ multinationals report : july 2012 ) OR ( multi vaccine research : july 2011 )).
• Adding a wildcard symbol may retrieve word variants: (("_ multinationals report : july 2012") OR ("multi vaccine research : july 2011"))*.