Perhaps you should try some spelling variations:
integration theories » integration theorems, integrationstheorie 2, integration theory
integration schemes » integration schengen, irrigation schemes, integration regimes
group integration » group interaction, group interactions, erp integration
support group » support grant
support grid » support agri, support grant, support build

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( support group integration schemes. ) OR ( support grid integration theories. ))~".
• Adding a wildcard symbol may retrieve word variants: (( support group integration schemes. ) OR ( support grid integration theories. ))*.