Perhaps you should try some spelling variations:
personal communication » interpersonal communication
information centre » information centers, information contents
technologies 3 » technologies _, technologies 4, technologies 2
3 information » 1 information
4 developing » 3 developing
el personal » e personal, der personal, des personal
centre el » entre el, centre et, centre des
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologies 3 information centre el personal communication costs 4 developing _ africa.*.