Perhaps you should try some spelling variations:
krebsforschung progres » krebsforschung from
les recherches » de recherches
cancer cancer » cancer chapter, cancer care
care cancer » male cancer
progres de » progres des

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