Perhaps you should try some spelling variations:
"Foundations of modern economica serie" » "Foundations of modern economic serie", "Foundations of poder economico serie", "Foundations of mineria economica serie", "Foundations of modern economica spines"
"Foundations of modelo economico peru" » "Foundations of modelos economicos peru", "Foundations of poder economico peru", "Foundations of proceso economico peru", "Foundations of modelo economico para", "Foundations of modelo economico cero", "Foundations of modelo economico de"

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