Perhaps you should try some spelling variations:
"improve water irrigation schemes." » "improve water irrigation scheme.", "improve water irrigation systems.", "improve scale irrigation schemes.", "improve canal irrigation schemes.", "improve farm irrigation schemes.", "improving water irrigation schemes."
"supply prime planning services." » "supply prime banking services.", "supply pre planning services.", "supply time planning services.", "supply promote planning services.", "supply private planning services.", "supply driven planning services.", "supply pipes planning services."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("supply prime planning services.") or ("improve water irrigation schemes."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply prime planning services.") OR ("improve water irrigation schemes."))*.
• Removing quotes may allow a broader search: (( supply prime planning services. ) or ( improve water irrigation schemes. ))*.