Perhaps you should try some spelling variations:
"eu law: ecj, legal profession, procedures, judicial cooperation" » "eu law: ecj, legal profession, procedures, social cooperation", "eu law: ecj, legal profession, procedures, regional cooperation", "eu law: ecj, legal profession, procedures, judicial protection"
"eu law: ecj, legal profession, procedures, judicial corruption" » "eu law: ecj, legal profession, procedures, political corruption"

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"eu law: ecj, legal profession, procedures, judicial cooperation\") OR (\"eu law: ecj, legal profession, procedures, judicial corruption\"))".
• Removing quotes may allow a broader search: (( eu law: ecj, legal profession, procedures, judicial cooperation ) OR ( eu law: ecj, legal profession, procedures, judicial corruption )).
• Adding a wildcard symbol may retrieve word variants: (("eu law: ecj, legal profession, procedures, judicial cooperation") OR ("eu law: ecj, legal profession, procedures, judicial corruption"))*.