Perhaps you should try some spelling variations:
international ecological » international technological, international psychological, international economics
"international political economy series" » "international policy economy series", "international political economics series"
"International ecological economics theories" » "International ecological economic theories", "International ecological economics series", "International ecological economics theory"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("international political economy series") or ("International ecological economics theories"))~.
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