Perhaps you should try some spelling variations:
integration theories » integration theory, integration through, integration efforts
integration power » integration some, integration process, international power
data integration » trade integration, _ integration, data integrity
report european » recent european
support data » import data, support a, export data

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: (( report european integration theories. ) OR ( support data integration power. ))~.
• Adding a wildcard symbol may retrieve word variants: (( report european integration theories. ) or ( support data integration power. ))*.