Perhaps you should try some spelling variations:
communication crisis » communication cross, communication costs, communication craig
urban development » human development
technologies von » technologies co, technologies box, technologies can
von information » von informationen, can information
information 1 » information 2, information 3, information 3.2
19 4 » 19 _, 19 a, 19 1

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: "technologies von information 1 ((19 4) OR (1 4)) communication crisis urban development 1 africa.~".
• Adding a wildcard symbol may retrieve word variants: technologies von information 1 ((19 4) OR (1 4)) communication crisis urban development 1 africa.*.