Perhaps you should try some spelling variations:
astronomique internationale » assyriologique internationale, autonomie internationaler, astronomy international
international astronomical » international economics, international economic, observations astronomical
economique internationale » economics international, economy international, politique internationale

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "international astronomical union / union ((astronomique internationale) OR (economique internationale))".
• Adding a wildcard symbol may retrieve word variants: international astronomical union / union ((astronomique internationale) OR (economique internationale))*.