Perhaps you should try some spelling variations:
international ecological » international technological, international psychological, international economics
"international political economic surveys" » "international policy economic surveys", "international political economy surveys", "international ecological economics surveys", "international political economic studies", "international political economic systems"
"International ecological economy studies" » "International ecological economic studies", "International biological economy studies", "International ecological economics studies", "International ecological economy series"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("international political economic surveys") or ("International ecological economy studies"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("international political economic surveys") OR ("International ecological economy studies")).
• Removing quotes may allow a broader search: (( international political economic surveys ) or ( International ecological economy studies )).
• Adding a wildcard symbol may retrieve word variants: (("international political economic surveys") or ("International ecological economy studies"))*.