Perhaps you should try some spelling variations:
de communication » mobile communication, online communication
technologies a » technologies _, technologies 4, technologies 2
1.3 developing » 3.3 developing, 13 developing, 7.3 developing
developing eu » developing e, developing eq, developing egg
payments how » payments flows, payments _, payments a
a informal » 6a informal, _ informal, 3 informal
costs 1.3 » costs 12.3, costs 14.3, costs 15.3
eu africa » em africa, 1 africa, 11 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 a informal payments how de communication costs 1.3 developing eu africa.*.