Perhaps you should try some spelling variations:
eine integrationstheorie » der integrationstheorie, revidierte integrationstheorie, die generationstheorie
integrationstheorie 2 » integrationstheorie fur, integration theories, interpretationstheorie 2
canal irrigation » scale irrigation
supply canal » supply canada, supply annual, supply china
supply eine » supply lines, supply china
systems. » system.

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

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