Perhaps you should try some spelling variations:
irrigation schemes » irrigation scheme, irrigation systems
syria irrigation » africa irrigation, drip irrigation, surge irrigation
inter services » water services, under services, internet services
liner services » online services, water services, air services
support syria » support social, support agri

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( supply from ((inter services) OR (liner services)). ) or ( support syria irrigation schemes. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply from ((inter services) OR (liner services)). ) OR ( support syria irrigation schemes. )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( supply from ((inter services) OR (liner services)). ) or ( support syria irrigation schemes. ))".
• Adding a wildcard symbol may retrieve word variants: (( supply from ((inter services) OR (liner services)). ) or ( support syria irrigation schemes. ))*.