Perhaps you should try some spelling variations:
"support state interactions terms." » "support state interventions terms.", "support face interactions terms.", "support strategic interactions terms.", "support state interaction terms.", "support state interaction term.", "support state international terms.", "support staff interactions terms.", "support strategy interactions terms.", "support estimate interactions terms."
"support farm irrigation schemes." » "support farm irrigation scheme.", "support farm irrigation systems.", "support scale irrigation schemes.", "support canal irrigation schemes.", "support from irrigation schemes.", "support falls irrigation schemes.", "support a 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 farm irrigation schemes.\"))~".
• Removing quotes may allow a broader search: (( support state interactions terms. ) OR ( support farm irrigation schemes. ))~.
• Adding a wildcard symbol may retrieve word variants: (("support state interactions terms.") OR ("support farm irrigation schemes."))*.