Perhaps you should try some spelling variations:
"supply rate international seminar." » "supply rate international series.", "supply rate international standard.", "supply rate international mining.", "supply rates international seminar.", "supply trade international seminar.", "supply raise international seminar.", "supply water international seminar.", "supply case international seminar."
"supply farm irrigation scheme." » "supply farm irrigation systems.", "supply scale irrigation scheme.", "supply canal irrigation scheme.", "supply from irrigation scheme.", "support farm irrigation scheme."

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 farm irrigation scheme.") OR ("supply rate international seminar."))~.
• Removing quotes may allow a broader search: (( supply farm irrigation scheme. ) or ( supply rate international seminar. ))~.
• Adding a wildcard symbol may retrieve word variants: (("supply farm irrigation scheme.") or ("supply rate international seminar."))*.