Perhaps you should try some spelling variations:
national integrationstheorie » traditionelle integrationstheorie, eine integrationstheorie, traditionellen integrationstheorie
integrationstheorie 2 » integrationstheorie fur, integration theories, interpretationstheorie 2
integration series » integration services, interaction series, integration server
supply national » support national, supply international
supply grid » supply crowd, supply great, support grid

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

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