Perhaps you should try some spelling variations:
informations center » information center, information centers, information centre
communication cost » communication costs, communication costa, communications costs
de communication » mobile communication, online communication
technologies 2 » technologies _, technologies 4
2 informations » 2 information, 4.2 informations, des informations
2.4 developing » 12.4 developing, 2.2 developing, 5.4 developing
developing em » developing e, developing eq, developing amp
center how » century how, better how, gender how
em africa » 1 africa
how de » how doe, how do, how ae

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 informations center how de communication cost 2.4 developing em africa.*.