Perhaps you should try some spelling variations:
krebsforschung die » krebsforschung _, krebsforschung und, krebsforschung heute
recents results » recent results, recents resultats, events results
2c fortschritte » 24 fortschritte, 25 fortschritte, c fortschritte
23 fortschritte » 24 fortschritte, 25 fortschritte, 3 fortschritte
2 fortschritte » 24 fortschritte, 25 fortschritte, 5 fortschritte
les recherches » de recherches
recent result » recent results, resent results, present results
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: %((recent result) OR (recents results)) in cancer research%((((2c fortschritte) OR (23 fortschritte))) OR (2 fortschritte)) der krebsforschung die%c3%a8s dans ((les recherches) OR (des recherches)) sur les cancer%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((recent result) or (recents results)) in cancer research%((((2c fortschritte) OR (23 fortschritte))) or (2 fortschritte)) der krebsforschung die%c3%a8s dans ((les recherches) or (des recherches)) sur les cancer%22".
• Adding a wildcard symbol may retrieve word variants: %((recent result) or (recents results)) in cancer research%((((2c fortschritte) OR (23 fortschritte))) or (2 fortschritte)) der krebsforschung die%c3%a8s dans ((les recherches) or (des recherches)) sur les cancer%22*.