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
les recherches » des recherches, de recherches
recherches sur » recherche sur
lung cancers » lung cancer
les cancers » liver cancers, cell cancers
les cancer » lines cancer, does cancer, cns cancer
bas dans » base dans, pas dans, bases 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 die%c3%bas dans les recherches sur ((les cancer) OR (((les cancers) OR (lung cancers))))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22recent results in cancer research%2c fortschritte der krebsforschung die%c3%bas dans les recherches sur ((les cancer) or (((les cancers) OR (lung cancers))))%22".
• Adding a wildcard symbol may retrieve word variants: %22recent results in cancer research%2c fortschritte der krebsforschung die%c3%bas dans les recherches sur ((les cancer) or (((les cancers) OR (lung cancers))))%22*.