Perhaps you should try some spelling variations:
"international policy economic welfare" » "international poverty economic welfare", "international prices economic welfare", "national policy economic welfare"
"international power economies were" » "international poverty economies were", "international ports economies were", "international panel economies were", "international poor economies were", "international power economic were", "international power economies more", "international power economies warren", "international power economies learn"

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

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