Perhaps you should try some spelling variations:
content integration » content generation, payment integration, country's integration
irrigation schemes » irrigation scheme, irrigation systems
canal irrigation » scale irrigation
supply content » supply contract, supply cote, supply constraint
supply canal » supply annual, supply rural, supply case

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 content integration study. ) OR ( supply canal irrigation schemes. ))~.
• Adding a wildcard symbol may retrieve word variants: (( supply content integration study. ) or ( supply canal irrigation schemes. ))*.