Perhaps you should try some spelling variations:
personal communication » interpersonal communication
information costs » information contents, information centers, information content
technologies 2 » technologies _, technologies 4
developing av » developing a, developing ai, developing amp
des personal » des personals, der personal, das personal
a developing » a development
costs des » costs fees
av africa » v africa, iv africa, can africa
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information costs des personal communication costs a developing av africa.*.