Perhaps you should try some spelling variations:
psychologique periodiques » psychologie periodiques, politique periodiques, economique periodiques
cooperation denmark » cooperation centre, cooperation feedback
cooperation entre » cooperation centre, cooperation et, cooperation europe
cooperation mark » cooperation more, cooperation marine, cooperation aaron

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((cooperation entre) or (((cooperation denmark) OR (cooperation mark)))) psychologique periodiques.~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((cooperation entre) OR (((cooperation denmark) OR (cooperation mark)))) psychologique periodiques..
• The words AND, OR and NOT may confuse the search; try adding quotes: "((cooperation entre) or (((cooperation denmark) OR (cooperation mark)))) psychologique periodiques.".
• Adding a wildcard symbol may retrieve word variants: ((cooperation entre) or (((cooperation denmark) OR (cooperation mark)))) psychologique periodiques.*.