Perhaps you should try some spelling variations:
irrigation schemes » irrigation scheme, irrigation systems
internet services » internet service
syria irrigation » africa irrigation, drip irrigation, surface irrigation
egypt internet » egypt integrated
supply egypt » supply gap, upper egypt
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 egypt internet services. ) or ( supply syria irrigation schemes. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply egypt internet services. ) OR ( supply syria irrigation schemes. )).
• Adding a wildcard symbol may retrieve word variants: (( supply egypt internet services. ) or ( supply syria irrigation schemes. ))*.