Perhaps you should try some spelling variations:
"Supply grid integration theories." » "Supply grid integration theory.", "Supply grid integration through.", "Supply grid integration reforms.", "Supply trade integration theories.", "Supply _ integration theories.", "Supply data integration theories."
"Supply grid integration efforts." » "Supply grid international efforts.", "Supply grid conservation efforts.", "Supply trade integration efforts.", "Supply _ integration efforts.", "Supply data integration efforts."
supply grid » supply crowd, support grid

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

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