Perhaps you should try some spelling variations:
krebsforschung die » krebsforschung _, krebsforschung und, krebsforschung heute
recents results » recent results, recents resultats, events results
2c fortschritte » 2 fortschritte, 23 fortschritte, 24 fortschritte
les recherches » de recherches
les cancers » liver cancers, neck cancers, lung cancers
arts dans » art dans, arts dance, faits 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: %recents results in cancer research%2c fortschritte der krebsforschung die%c3%arts dans ((les recherches) OR (des recherches)) sur les cancers%22.
• Adding a wildcard symbol may retrieve word variants: %recents results in cancer research%2c fortschritte der krebsforschung die%c3%arts dans ((les recherches) or (des recherches)) sur les cancers%22*.