Perhaps you should try some spelling variations:
approximate international » appropriate international, approximate integration, approximate iterations
22private international » private international, privacy international, deprivation international
iec international » public international
2c comparative » c comparative, abc comparative, dic comparative
26 foreign » 2 foreign, 6 foreign, 23 foreign

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• The words AND, OR and NOT may confuse the search; try adding quotes: "%((22private international) OR (approximate international)) law%iec international %26 foreign law%2c comparative law%22".
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