Perhaps you should try some spelling variations:
krebsforschung und » krebsforschung _, krebsforschung die, krebsforschung heute
22recent results » recent results, recent result, recents results
present results » recent results, treatment results
2c fortschritte » 2 fortschritte, 23 fortschritte, 24 fortschritte
les recherches » des recherches, de recherches
recherches sur » recherche sur
does cancer » modes cancer, nodes cancer, does cantor
a8s dans » ans dans, arts dans, ames dans
sur does » sur des, four does, star does

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "%((22recent results) OR (present results)) in cancer research%2c fortschritte der krebsforschung und%c3%a8s dans les recherches sur does cancer%22".
• Adding a wildcard symbol may retrieve word variants: %((22recent results) OR (present results)) in cancer research%2c fortschritte der krebsforschung und%c3%a8s dans les recherches sur does cancer%22*.