Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
technologien dis » technologien des, technologien als, technologien im
do communication » do communications, de communication, ngo communication
dis information » mis information, aids information, des informations
3.4 developing » 13.4 developing, 3.3 developing, 3.2 developing
contents data » context data, contents a, contents fase
developing eu » developing e, developing eq, developing egg
eu africa » em africa, 1 africa, 11 africa
cost 3.4 » cost 2.4, cost 3.2, cost 3.5

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

• Adding a wildcard symbol may retrieve word variants: technologien dis information contents data do communication cost 3.4 developing eu africa.*.