Perhaps you should try some spelling variations:
personal communication » interpersonal communication
technologien aids » technologien als, technologien ad, technologien des
aids information » chandos information, series information
2.2 developing » 3.2 developing, 3.3 developing, 2.2 development
information 3 » information 2
developing em » developing e, developing eq, developing amp
4 personal » a personal, 1 personal, 1945 personal
costs 2.2 » costs 4.2, costs 2.3, cost 2.2
em africa » 1 africa

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

• Adding a wildcard symbol may retrieve word variants: technologien aids information 3 4 personal communication costs 2.2 developing em africa.*.