Perhaps you should try some spelling variations:
"Foundations of modern economics theories" » "Foundations of modern economic theories", "Foundations of modern economic theory", "Foundations of modern economicos teoria", "Foundations of poder economico theories", "Foundations of modelos economicos theories"
"Foundations of modelo economico sociales" » "Foundations of modelo economicos sociales", "Foundations of modelo economico social", "Foundations of modelo economico spines", "Foundations of modelos economicos sociales", "Foundations of poder economico sociales", "Foundations of proceso economico sociales"

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