Perhaps you should try some spelling variations:
"supply china international seminar." » "supply china international standard.", "supply china international journal.", "supply china international air.", "supply chains international seminar.", "supply chain international seminar."
"supply grid integration power." » "supply grid integration some.", "supply grid integration process.", "supply grid international power.", "supply trade integration power.", "supply _ integration power.", "supply data integration power.", "supply crowd integration power.", "support grid integration power."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("supply china international seminar.") OR ("supply grid integration power."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"supply china international seminar.\") OR (\"supply grid integration power.\"))".
• Removing quotes may allow a broader search: (( supply china international seminar. ) OR ( supply grid integration power. )).
• Adding a wildcard symbol may retrieve word variants: (("supply china international seminar.") OR ("supply grid integration power."))*.