Perhaps you should try some spelling variations:
"supply data integrationstheorie 2." » "supply der integrationstheorie 2.", "supply eine integrationstheorie 2.", "supply aa migrationstheorie 2.", "supply data integrationstheorie fur.", "supply data integration theories.", "supply data interpretationstheorie 2."
"supply large irrigation scheme." » "supply large irrigation systems.", "supply farm irrigation scheme.", "supply drip irrigation scheme.", "supply scale irrigation scheme.", "supply charges irrigation scheme.", "supply targets irrigation scheme.", "supply curve irrigation scheme."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("supply large irrigation scheme.") or ("supply data integrationstheorie 2."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply large irrigation scheme.") OR ("supply data integrationstheorie 2."))*.
• Removing quotes may allow a broader search: (( supply large irrigation scheme. ) or ( supply data integrationstheorie 2. ))*.