Perhaps you should try some spelling variations:
spanish literatura » spanish literaturey, spain literatura, spanish literary
"Spanish literatura 19th century." » "Spanish literature 19th century.", "Spanish literaturey 19th century.", "Spanish literatura 1920 century."
"spanish literature 20th century." » "spanish literature 19th century."

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: (("Spanish literatura 19th century.") or ("spanish literature 20th century."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("Spanish literatura 19th century.") OR ("spanish literature 20th century.")).
• Removing quotes may allow a broader search: (( Spanish literatura 19th century. ) or ( spanish literature 20th century. )).
• Adding a wildcard symbol may retrieve word variants: (("Spanish literatura 19th century.") or ("spanish literature 20th century."))*.