Perhaps you should try some spelling variations:
persona communication » personal communication, personal communications, personal communicator
communication cost » communication costs, communication costa, communications costs
technologien does » technologien des, technologien als, technologie de
does information » des informations, dis information, users information
developing asian » developing asia, developing human, developing areas
2.2 developing » 3.2 developing, 3.3 developing, 2.2 development
information b » information 2, information 1, information bank
asian areas » asian arab, aside areas, basin areas
de persona » de personal, de personas, die persona
cost 2.2 » costs 2.2, cost 2.4, cost 3.2
b de » b die, b der, _ de

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

• Adding a wildcard symbol may retrieve word variants: technologien does information b de persona communication cost 2.2 developing asian areas.*.