Perhaps you should try some spelling variations:
recherche economiques » recherches agronomiques (Expand Search)
delle universita » della universita (Expand Search), denver university (Expand Search), blde university (Expand Search)
laboratoires de » laboratorio de (Expand Search), laboratori de (Expand Search)
economiques e » economiques de (Expand Search), economique et (Expand Search), economistes et (Expand Search)
universita di » universidad de (Expand Search), university _ (Expand Search), universitaria de (Expand Search)
de recherche » de recherches (Expand Search), des recherches (Expand Search), la recherche (Expand Search)
travaux des » travaux de (Expand Search), travaux du (Expand Search), travaux en (Expand Search)
travaux p » travaux de (Expand Search), travaux du (Expand Search), travaux en (Expand Search)

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((travaux des) OR (travaux p)) laboratoires de recherche economiques e delle universita di~.
• Adding a wildcard symbol may retrieve word variants: ((travaux des) or (travaux p)) laboratoires de recherche economiques e delle universita di*.