Perhaps you should try some spelling variations:
"serie claves bleus des nations unies ;" » "serie cla bleus des nations unies ;" (Expand Search), "serie livres bleus des nations unies ;" (Expand Search)
"serie claves bleus does nations unies ;" » "serie cla bleus does nations unies ;" (Expand Search), "serie livres bleus does nations unies ;" (Expand Search), "serie claves bleus les nations unies ;" (Expand Search), "serie claves bleus does latin unies ;" (Expand Search), "serie claves bleus les nationes unies ;" (Expand Search)

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("serie claves bleus des nations unies ;") OR ("serie claves bleus does nations unies ;"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"serie claves bleus des nations unies ;\") OR (\"serie claves bleus does nations unies ;\"))".
• Removing quotes may allow a broader search: (( serie claves bleus des nations unies ; ) OR ( serie claves bleus does nations unies ; )).
• Adding a wildcard symbol may retrieve word variants: (("serie claves bleus des nations unies ;") OR ("serie claves bleus does nations unies ;"))*.