Perhaps you should try some spelling variations:
integration efforts » international efforts, conservation efforts
integration schemes » integration schengen, irrigation schemes, integration regimes
factor integration » facto integration, sector integration, actor interaction
curve integration » care integration, burke integration, curvello integration
supply factor » supply factors, supply sector

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: (( supply factor integration efforts. ) OR ( supply curve integration schemes. ))~.
• Adding a wildcard symbol may retrieve word variants: (( supply factor integration efforts. ) or ( supply curve integration schemes. ))*.