Perhaps you should try some spelling variations:
"support state interactions terms." » "support scale interactions terms.", "support state interventions terms.", "support sea interactions terms.", "support state interaction terms.", "support state interaction term.", "support state interactions series.", "support stage interactions terms.", "support staff interactions terms.", "support start interactions terms."
"support fare irrigation schemes." » "support fare irrigation scheme.", "support fare irrigation systems.", "support farm irrigation schemes.", "support large irrigation schemes.", "support scale irrigation schemes.", "support farmers irrigation schemes.", "support future irrigation schemes."

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"support state interactions terms.\") OR (\"support fare irrigation schemes.\"))~".
• Removing quotes may allow a broader search: (( support state interactions terms. ) OR ( support fare irrigation schemes. ))~.
• Adding a wildcard symbol may retrieve word variants: (("support state interactions terms.") OR ("support fare irrigation schemes."))*.