Perhaps you should try some spelling variations:
22recent results » recent results, present results, recent result
2c fortschritte » 2 fortschritte, 23 fortschritte, 24 fortschritte
recherches sur » recherche sur
les cancer » les cancers, lines cancer, does cancer
a8s dans » ans dans, arts dans, ames dans

Try widening your search to All Fields.

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: %22recent results in cancer research%2c fortschritte der ((krebsforschung heute) OR (krebsforschung _))%c3%a8s dans des recherches sur les cancer%22.
• Adding a wildcard symbol may retrieve word variants: %22recent results in cancer research%2c fortschritte der ((krebsforschung heute) or (krebsforschung _))%c3%a8s dans des recherches sur les cancer%22*.