Perhaps you should try some spelling variations:
"export base international border." » "export base international borders.", "export base international bidders.", "export base international bond.", "export raise international border.", "export care international border.", "export bank international border.", "export share international border."
"supply social irrigation schemes." » "supply social irrigation scheme.", "supply social irrigation systems.", "supply local irrigation schemes.", "supply scale irrigation schemes.", "supply social mitigation schemes."

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: (("supply social irrigation schemes.") OR ("export base international border."))~.
• Removing quotes may allow a broader search: (( supply social irrigation schemes. ) or ( export base international border. ))~.
• Adding a wildcard symbol may retrieve word variants: (("supply social irrigation schemes.") or ("export base international border."))*.