Perhaps you should try some spelling variations:
integration efforts » international efforts, conservation efforts
integration theory » integration through, information theory, innovation theory
deep integration » data integration
eu integration » die integration, data integration
supply deep » support deep
supply eu » supply _, supply a, supply 3

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( supply eu integration efforts. ) or ( supply deep integration theory. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply eu integration efforts. ) OR ( supply deep integration theory. ))*.