Perhaps you should try some spelling variations:
personal communication » interpersonal communication
technologien ad » technologien am, technologien und, technologien als
3.1 development » 2 development
development pan » development plan, development plans, development japan
ad information » d information, nd information, od information
information i » information im, information 2, information 1
new personal » der personal, how personal, de personal
pan african » pan american, can africa, pan africanism
costs 3.1 » costs 3.5, costs 4.1, costs 2.1
i new » ii new, _ new, a new

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

• Adding a wildcard symbol may retrieve word variants: technologien ad information i new personal communication costs 3.1 development pan african.*.