Perhaps you should try some spelling variations:
firms integrationstheorie » der integrationstheorie, eine integrationstheorie
integrationstheorie 2 » integrationstheorie fur, integration theories, interpretationstheorie 2
fiscal integration » visual integration, local integration, scale integration
integration series » integration services, interaction series, integration server
supply fiscal » support fiscal
supply firms » supply farm, supply reforms, support firms

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

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