Perhaps you should try some spelling variations:
krebsforschung der » krebsforschung uber, krebsforschung die, krebsforschung das
2c fortschritte » 2 fortschritte, 23 fortschritte, 24 fortschritte
les recherches » des recherches, de recherches
recherches sur » recherche sur
lines cancer » linear cancer, linked cancer, genes cancer
lungs cancer » lung cancer
lung cancers » lung 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 results in cancer research%2c fortschritte der krebsforschung der%c3%a8s dans les recherches sur ((lines cancer) OR (((lungs cancer) OR (lung cancers))))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%recent results in cancer research%2c fortschritte der krebsforschung der%c3%a8s dans les recherches sur ((lines cancer) or (((lungs cancer) OR (lung cancers))))%22".
• Adding a wildcard symbol may retrieve word variants: %recent results in cancer research%2c fortschritte der krebsforschung der%c3%a8s dans les recherches sur ((lines cancer) or (((lungs cancer) OR (lung cancers))))%22*.