Perhaps you should try some spelling variations:
strategy integration » strategic integration, strategy integrating, strategic interaction
integration theory » integration through, information theory, innovation theory
integration social » international social
support strategy » supply strategy
export zur » export aus, export hub, export curbs

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: (( support strategy integration theory. ) OR ( export zur integration social. ))~.
• Adding a wildcard symbol may retrieve word variants: (( support strategy integration theory. ) or ( export zur integration social. ))*.