Perhaps you should try some spelling variations:
"Foundations of modelos conflictos sociales" » "Foundations of modelos economicos sociales", "Foundations of los conflictos sociales", "Foundations of modelos conceptos sociales"
"Foundations of modelo economica serie" » "Foundations of modelo economico serie", "Foundations of modelos economicos serie", "Foundations of modern economic serie", "Foundations of modelo economica spines"

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: (("Foundations of modelos conflictos sociales") OR ("Foundations of modelo economica serie"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"Foundations of modelos conflictos sociales\") OR (\"Foundations of modelo economica serie\"))".
• Removing quotes may allow a broader search: (( Foundations of modelos conflictos sociales ) OR ( Foundations of modelo economica serie )).
• Adding a wildcard symbol may retrieve word variants: (("Foundations of modelos conflictos sociales") OR ("Foundations of modelo economica serie"))*.