Perhaps you should try some spelling variations:
stroke communication » prone communication, spoken communication, style communication
technologien 2 » technologies 2, technologien _, technologien 1
information a » information age, information about
la developing » a developing, era developing, 3 developing
2.2.3 stroke » 3.1.3 stroke, 3.2.2 stroke, 2.2.3 otros
a 2.2.3 » 1 2.2.3, a 2.3.3, c 2.2.3
a urban » 2 urban, 1 urban, 3 urban
4 urban » 2 urban

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: "technologien 2 information a 2.2.3 stroke communication a la developing ((a urban) OR (4 urban)).~".
• Adding a wildcard symbol may retrieve word variants: technologien 2 information a 2.2.3 stroke communication a la developing ((a urban) OR (4 urban)).*.