Perhaps you should try some spelling variations:
"sello en la espanola contemporanea" » "sello en la espana contemporanea" (Expand Search), "sello en la espanol contemporaneo" (Expand Search), "bello en la espanola contemporanea" (Expand Search), "ello en la espanola contemporanea" (Expand Search), "sellado en la espanola contemporanea" (Expand Search)
"sello en la epoca contemporanea" » "sello en la espana contemporanea" (Expand Search), "sello en la social contemporanea" (Expand Search), "sello en la edad contemporanea" (Expand Search), "bello en la epoca contemporanea" (Expand Search), "ello en la epoca contemporanea" (Expand Search), "sellado en la epoca contemporanea" (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: (("sello en la epoca contemporanea") OR ("sello en la espanola contemporanea"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"sello en la epoca contemporanea\") OR (\"sello en la espanola contemporanea\"))".
• Removing quotes may allow a broader search: (( sello en la epoca contemporanea ) OR ( sello en la espanola contemporanea )).
• Adding a wildcard symbol may retrieve word variants: (("sello en la epoca contemporanea") OR ("sello en la espanola contemporanea"))*.