Perhaps you should try some spelling variations:
recherche prend » recherche en, recherche und, recherche project
prend economic » rent economic, bread economic, red economic
economic agent » economic agents, economic rent, economic rents
e recherche » de recherche, en recherche, et recherche
studi e » studi per, studia ve, studie 2

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: studi e recherche prend economic agent ;~.
• Adding a wildcard symbol may retrieve word variants: studi e recherche prend economic agent ;*.