Perhaps you should try some spelling variations:
"series estudios americanos." » "series estudios latinoamericanos.", "serie estudios americanos.", "seis estudios americanos.", "tres estudios americanos."
"los estudios urbano." » "los estudios urbanos.", "los estudio urbano.", "los estudios peruanos."
"series espana durango." » "series espana durante.", "series espana franco.", "series spain durango.", "ferias espana durango.", "seriadas espana durango.", "artes espana durango."

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: (((("series espana durango.") or ("series estudios americanos."))) or ("los estudios urbano."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("series espana durango.") OR ("series estudios americanos."))) OR ("los estudios urbano.")).
• Removing quotes may allow a broader search: (((( series espana durango. ) or ( series estudios americanos. ))) or ( los estudios urbano. )).
• Adding a wildcard symbol may retrieve word variants: (((("series espana durango.") or ("series estudios americanos."))) or ("los estudios urbano."))*.