Perhaps you should try some spelling variations:
l'universita de » l'universite de (Expand Search), universita di (Expand Search), dell'universita di (Expand Search)
de l'universita » de l'universite (Expand Search), della universita (Expand Search), a l'universite (Expand Search)
laboratoire de » laboratoires de (Expand Search), laboratori de (Expand Search), laboratorio de (Expand Search)
biologique de » biologia de (Expand Search), biologie du (Expand Search)
de recherche » de recherches (Expand Search), des recherches (Expand Search), la recherche (Expand Search)
travaux de » travaux du (Expand Search)
travaux p » 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 de) OR (travaux p)) laboratoire de recherche biologique de l'universita de madrid~.
• Adding a wildcard symbol may retrieve word variants: ((travaux de) or (travaux p)) laboratoire de recherche biologique de l'universita de madrid*.