Perhaps you should try some spelling variations:
sector integration » social integration
integration power » integration some, integration process, international power
irrigation scheme » irrigation systems
syria irrigation » africa irrigation, drip irrigation, surface irrigation
supply syria » supply social

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

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