Perhaps you should try some spelling variations:
integration theories » integration theorems, integrationstheorie 2, integration theory
integration efforts » international efforts, conservation efforts
global integration » regional integration
farm integration » fare integration, alarm integration, from integration
support farm » support firms, support from, support farmers

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 farm integration theories. ) OR ( supply global integration efforts. ))~.
• Adding a wildcard symbol may retrieve word variants: (( support farm integration theories. ) or ( supply global integration efforts. ))*.