Perhaps you should try some spelling variations:
"economic renaissance" » "economic relevance"
"economic remittances" » "economies remittances", "electronic remittances", "economic resilience"
"economic resistance" » "economy resistance", "economic resilience", "economic distance"

Try widening your search to All Fields.

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: (((((("economic resistance") OR ("economic remittances"))) OR ("economic renaissance"))) OR ("economic assistance")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"economic resistance\") OR (\"economic remittances\"))) or (\"economic renaissance\"))) or (\"economic assistance\"))".
• Removing quotes may allow a broader search: (((((( economic resistance ) OR ( economic remittances ))) or ( economic renaissance ))) or ( economic assistance )).
• Adding a wildcard symbol may retrieve word variants: (((((("economic resistance") OR ("economic remittances"))) or ("economic renaissance"))) or ("economic assistance"))*.