Perhaps you should try some spelling variations:
"multi climatic research : july 2009" » "multi climate research : july 2009", "multi climatic research : july 2008", "multi climatic research : july 2007", "multi climatic research : july 2019"
"Multi vaccine research : July 2009" » "Multi medicine research : July 2009"
multi vaccine » anti vaccine, multiple vaccines

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"Multi vaccine research : July 2009\") OR (\"multi climatic research : july 2009\"))~".
• Removing quotes may allow a broader search: (( Multi vaccine research : July 2009 ) OR ( multi climatic research : july 2009 ))~.
• Adding a wildcard symbol may retrieve word variants: (("Multi vaccine research : July 2009") OR ("multi climatic research : july 2009"))*.