Perhaps you should try some spelling variations:
integration efforts » international efforts, conservation efforts
irrigation schemes » irrigation scheme, irrigation systems
power integration » border integration, policy integration, deeper integration
how irrigation » crop irrigation, from irrigation, high irrigation
supply power » supply poverty, supply water, supply pipes
supply how » supply shock

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