Perhaps you should try some spelling variations:
integration efforts » international efforts, conservation efforts
irrigation system » irrigation systems, irrigation water, irrigation scheme
crowd integration » grid integration, trade integration, chain integration
syria irrigation » africa irrigation, drip irrigation, surface irrigation
supply syria » supply social
supply crowd » supply growth, supply cost, supply how

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

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