Perhaps you should try some spelling variations:
persona communication » personal communication, personal communications, personal communicator
communication costa » communication costs, communications costs, communication cote
technologien des » technologien fur, technologien und, technologies 2
developing areas » developing asia, developing east, developing a
des information » des informations, does information, dis information
5.5 developing » 25.5 developing, 5.15 developing, 1.5 developing
information 2 » information 3
areas arenas » areas trends, seas areas
der persona » der personal, der person, de persona
costa 5.5 » cost 5.5, cost 2.5, cost 3.5
2 der » _ der

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

• Adding a wildcard symbol may retrieve word variants: technologien des information 2 der persona communication costa 5.5 developing areas arenas.*.