Perhaps you should try some spelling variations:
irrigation schemes » irrigation scheme, irrigation systems
inter services » water services, under services, liner services
support social » supporting social, supply social
support syria » support agri
from inter » from internal, from internet, from insider

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