Perhaps you should try some spelling variations:
der integrationstheorie » eine integrationstheorie, der generationstheorie, der migrationstheorien
integrationstheorie 2 » integrationstheorie fur, integration theories, interpretationstheorie 2
integration theory » integration through, information theory, innovation theory
data integration » data integrity
supply der » supply order, supply under, supply siders

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( supply data integration theory. ) or ( supply der integrationstheorie 2. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply data integration theory. ) OR ( supply der integrationstheorie 2. )).
• Adding a wildcard symbol may retrieve word variants: (( supply data integration theory. ) or ( supply der integrationstheorie 2. ))*.