Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
information centers » information contents, information officers
mce communications » face communications, voice communications, cell communications
technologies 2.1 » technologies _, technologies 4, technologies a
2.1 information » 3.1 information
13 developing » 1.3 developing, 3 developing, 1 developing
developing em » developing e, developing eq, developing amp
centers how » center how, centers hold, century how
em africa » 1 africa
costs 13 » costs 1, costs 3, costs 12.3
how mce » how moe, how much

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

• Adding a wildcard symbol may retrieve word variants: technologies 2.1 information centers how mce communications costs 13 developing em africa.*.