Perhaps you should try some spelling variations:
"warming climate research : july 2009" » "warmer climate research : july 2009", "changing climate research : july 2009", "warming climate research : july 2008", "warming climate research : july 2007", "warming climate research : july 2019"
"arid climate research : july 2006" » "arid climate research : july 2008", "arid climate research : july 2007", "arid climate research : july 2013", "aid climate research : july 2006", "grid climate research : july 2006", "acid climate research : july 2006"

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: "((\"arid climate research : july 2006\") OR (\"warming climate research : july 2009\"))~".
• Removing quotes may allow a broader search: (( arid climate research : july 2006 ) OR ( warming climate research : july 2009 ))~.
• Adding a wildcard symbol may retrieve word variants: (("arid climate research : july 2006") OR ("warming climate research : july 2009"))*.