Perhaps you should try some spelling variations:
irrigation schemes » irrigation scheme, irrigation systems
agri irrigation » africa irrigation, grain irrigation, syria irrigation
inter services » water services, under services, liner services
support agri » support grid, support aging, support a
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 agri irrigation schemes. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply from inter services. ) OR ( support agri irrigation schemes. )).
• Adding a wildcard symbol may retrieve word variants: (( supply from inter services. ) or ( support agri irrigation schemes. ))*.