Perhaps you should try some spelling variations:
extended research » gender research, oriented research
climatic research » climate research
recent climatic » recent climate, recurrent climatic, iirecent climate
mdg extended » model extended, _ extended, 3 extended
july 2009 » july 2008, july 2007, 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: (( mdg extended research : july 2009 ) or ( recent climatic research : july 2009 ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( mdg extended research : july 2009 ) OR ( recent climatic research : july 2009 )).
• Adding a wildcard symbol may retrieve word variants: (( mdg extended research : july 2009 ) or ( recent climatic research : july 2009 ))*.