Perhaps you should try some spelling variations:
concertation efforts » conservation efforts, conservation effort, consolidation efforts
social concertation » social contestation, social cooperation, social consideration
global integration » regional integration
integration theory » integration through, information theory, innovation theory

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( supply global integration theory. ) or ( supply social concertation efforts. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply global integration theory. ) OR ( supply social concertation efforts. )).
• Adding a wildcard symbol may retrieve word variants: (( supply global integration theory. ) or ( supply social concertation efforts. ))*.