Perhaps you should try some spelling variations:
communication methods » communication media, communication model
information need » information needs, information needed, information speed
technologies a » technologies _, technologies 4, technologies 2
de development » e development, ce development, de developpement
a information » 2 information, 1 information
does mobile » das mobile
methods de » methodes de, methods die, methods d

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

• Adding a wildcard symbol may retrieve word variants: technologies a information need does mobile communication methods de development _ afrique.*.