Perhaps you should try some spelling variations:
krebsforschung die » krebsforschung _, krebsforschung und, krebsforschung heute
22recent results » recent results, present results, recent result
2c fortschritte » 2 fortschritte, 23 fortschritte, 24 fortschritte
recherches sur » recherche sur
les cancers » liver cancers, lung cancers, cell cancers
armes dans » carmes dans, ames dans, armee dans
les cancer » lines cancer, does cancer, cns cancer

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