Perhaps you should try some spelling variations:
irrigation schemes » irrigation scheme, irrigation systems
planning services » banking services
canal irrigation » scale irrigation
trade planning » trade planting, travel planning, state planning
supply trade » supply case
supply canal » supply canada, supply annual, supply china

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply trade planning services. ) OR ( supply canal irrigation schemes. ))~.
• Adding a wildcard symbol may retrieve word variants: (( supply trade planning services. ) or ( supply canal irrigation schemes. ))*.