Perhaps you should try some spelling variations:
irrigation schemes » irrigation scheme, irrigation systems
training services » planning services, banking services
group irrigation » crop irrigation, drip irrigation, from irrigation
support group » support grant
side training » scidev training, onsite training, using training

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( support group irrigation schemes. ) or ( supply side training services. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( support group irrigation schemes. ) OR ( supply side training services. )).
• Adding a wildcard symbol may retrieve word variants: (( support group irrigation schemes. ) or ( supply side training services. ))*.