Perhaps you should try some spelling variations:
information context » information content, information contents, information centers
communication cost » communication costs, communication costa, communications costs
technologien aids » technologien als, technologien ad, technologien des
get communication » et communication, debt communication, de communication
aids information » chandos information, series information
developing east » development east, developing a, developing asia
2.3 developing » 3.3 developing, 2.2 developing, 1.3 developing
context 3.1 » context 2.1, context 1, context 1.3
east africa » west africa
cost 2.3 » costs 2.3, cost 2.4, cost 2.2
3.1 get » 3.1 git, 5.1 get, 3.1 gott

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

• Adding a wildcard symbol may retrieve word variants: technologien aids information context 3.1 get communication cost 2.3 developing east africa.*.