Perhaps you should try some spelling variations:
"support carbon irrigation scheme." » "support carbon mitigation scheme.", "support crop irrigation scheme.", "support canal irrigation scheme.", "support carbon irrigation systems.", "supporting carbon irrigation scheme.", "support can irrigation scheme.", "support common irrigation scheme."
"support bank information theory." » "support urban information theory.", "support 1 information theory.", "support can information theory.", "support basic information theory.", "support a information theory."

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: (("support carbon irrigation scheme.") OR ("support bank information theory."))~.
• Removing quotes may allow a broader search: (( support carbon irrigation scheme. ) or ( support bank information theory. ))~.
• Adding a wildcard symbol may retrieve word variants: (("support carbon irrigation scheme.") or ("support bank information theory."))*.