Perhaps you should try some spelling variations:
water integrationstheorie » der integrationstheorie, eine integrationstheorie
international efforts » international airports, international energy, international airport
integrationstheorie 2 » integrationstheorie fur, integration theories, interpretationstheorie 2
chain international » chains international, main international, can international

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

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