Perhaps you should try some spelling variations:
union bulgarien » und bulgarien (Expand Search)
pour » our (Expand Search), cour (Expand Search), four (Expand Search)
societa » society (Expand Search), societe (Expand Search), societats (Expand Search)
societyts » societats (Expand Search), society (Expand Search)
societets » societats (Expand Search), societe (Expand Search)
nations » nation (Expand Search), nationen (Expand Search)

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: "union bulgarien pour la paix et pour la (societa OR (societyts OR societets)) des nations~".
• Adding a wildcard symbol may retrieve word variants: union bulgarien pour la paix et pour la (societa OR (societyts OR societets)) des nations*.