Perhaps you should try some spelling variations:
integration theories » integration theorems, integrationstheorie 2, integration theory
state integration » statt integration, scale integration, space integration
integration south » integration study, integration some, integration social
die integration » trade integration
support state » support stage, support staff, support start
import die » importe die, import dutie, importes die

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( support state integration theories. ) OR ( import die integration south. ))~.
• Adding a wildcard symbol may retrieve word variants: (( support state integration theories. ) or ( import die integration south. ))*.