Perhaps you should try some spelling variations:
krebsforschung progres » krebsforschung from
les recherches » des recherches, de recherches
recherches sur » recherche sur
progres dans » progres des, progres de
care cancer » male cancer, cancer cancer
le cancer » e cancer, male cancer

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, fortschritte der krebsforschung progres dans les recherches sur ((le cancer) OR (((pre cancer) OR (care cancer)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "recent results in cancer research, fortschritte der krebsforschung progres dans les recherches sur ((le cancer) or (((pre cancer) OR (care cancer))))".
• Adding a wildcard symbol may retrieve word variants: recent results in cancer research, fortschritte der krebsforschung progres dans les recherches sur ((le cancer) or (((pre cancer) OR (care cancer))))*.