Perhaps you should try some spelling variations:
irrigation schemes » irrigation scheme, irrigation systems
chain integration » trade integration, data integration, grid integration
integration power » integration some, integration process, international power
canal irrigation » scale irrigation
supply canal » supply annual, supply rural, supply case

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( supply chain integration power. ) or ( supply canal irrigation schemes. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply chain integration power. ) OR ( supply canal irrigation schemes. )).
• Adding a wildcard symbol may retrieve word variants: (( supply chain integration power. ) or ( supply canal irrigation schemes. ))*.