Perhaps you should try some spelling variations:
"support third international seminar." » "support third international standard.", "support third international journal.", "support third international air.", "support china international seminar.", "support first international seminar.", "support how international seminar.", "support them international seminar.", "support grid international seminar."
"supply charges irrigation systems." » "supply change irrigation systems.", "supply large irrigation systems.", "supply chains irrigation systems.", "supply curves irrigation systems.", "supply shortages irrigation systems.", "supply charges irrigation system."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("supply charges irrigation systems.") or ("support third international seminar."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply charges irrigation systems.") OR ("support third international seminar.")).
• Removing quotes may allow a broader search: (( supply charges irrigation systems. ) or ( support third international seminar. )).
• Adding a wildcard symbol may retrieve word variants: (("supply charges irrigation systems.") or ("support third international seminar."))*.