Perhaps you should try some spelling variations:
"quality educational research : july 2009" » "quality education research : july 2009", "inequality educational research : july 2009", "elite educational research : july 2009", "quality educational research : july 2008", "quality educational research : july 2007", "quality educational research : july 2019"
"multi factor research : july 2013" » "multi factors research : july 2013", "multi sector research : july 2013", "multi actors research : july 2013", "multi actor research : july 2013", "_ multifactor research : july 2013"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("multi factor research : july 2013") OR ("quality educational research : july 2009"))~.
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