Perhaps you should try some spelling variations:
policy integrationstheorie » eine integrationstheorie, der integrationstheorie
integrationstheorie 2 » integrationstheorie fur, integration theories, interpretationstheorie 2
irrigation schemes » irrigation scheme, irrigation systems
water irrigation » scale irrigation, canal irrigation, farm irrigation
support policy » support policies, import policy
support water » support chapter, support greater, support better

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

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