Perhaps you should try some spelling variations:
"heat climate research : july 2011" » "health climate research : july 2011", "threat climate research : july 2011", "best climate research : july 2011", "heat climate research : july 2013", "heat climate research : july 2012", "heat climate research : july 2015"
"meet climate research : july 2006" » "best climate research : july 2006", "deep climate research : july 2006", "recent climate research : july 2006", "meet climate research : july 2008", "meet climate research : july 2007", "meet climate research : july 2009"

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• Adding a wildcard symbol may retrieve word variants: (("heat climate research : july 2011") OR ("meet climate research : july 2006"))*.