Perhaps you should try some spelling variations:
mobile communications » mobile communication
communications costs » communication costs, communications _
developing latin » developing nation, developing nations, development latin
3.3 developing » 4 developing, 2 developing, 1 developing
latin american » latin america
technology de » technology does, technology dlt, technology 1
debate mobile » debate moral, debate sobre
formation 1 » formation _, formation 5, information 1
costs 3.3 » costs 2.3, costs 3.5, costs 4.3
1 debate » 1 debates, _ debate, a debate

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

• Adding a wildcard symbol may retrieve word variants: technology de formation 1 debate mobile communications costs 3.3 developing latin american.*.