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