Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
technologien aids » technologien als, technologien ad, technologien des
aids information » chandos information, series information
do communication » do communications, de communication, ngo communication
3.3 developing » 4 developing, 2 developing, 1 developing
developing a » developing _
4.2 deep » 4.2 die, 4.2 der
cost 3.3 » cost 3.2, cost 2.3, cost 3.4
deep do » deep down, deep box
a areas » 1 areas, 2 areas, 4 areas

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

• Adding a wildcard symbol may retrieve word variants: technologien aids information 4.2 deep do communication cost 3.3 developing a areas.*.