Perhaps you should try some spelling variations:
child information » chief information, card information, field information
irrigation scheme » irrigation systems
syria irrigation » africa irrigation, drip irrigation, surface irrigation
supply child » supply chains, supply chain, supply crowd
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 child information theory. ) or ( supply syria irrigation scheme. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply child information theory. ) OR ( supply syria irrigation scheme. )).
• Adding a wildcard symbol may retrieve word variants: (( supply child information theory. ) or ( supply syria irrigation scheme. ))*.