Perhaps you should try some spelling variations:
eine integrationstheorie » der integrationstheorie, revidierte integrationstheorie, die generationstheorie
integrationstheorie 2 » integrationstheorie fur, interpretationstheorie 2, integration theorems
integration theories » integration theorems, integration theory, integration series
supply eine » supply lines, supply china
supply grid » supply crowd, supply great, support grid

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: (( supply eine integrationstheorie 2. ) OR ( supply grid integration theories. ))~.
• Adding a wildcard symbol may retrieve word variants: (( supply eine integrationstheorie 2. ) or ( supply grid integration theories. ))*.