Perhaps you should try some spelling variations:
communications models » communication model, communication modes, communicating model
voice communications » mobile communications, guinea communications, online communications
integrating data » integration data, integrated data, integrating a
du developpement » de developpement, le developpement, et developpement
developpement en » developpement et, developpement des, developpement de
1 integrating » 10 integrating, _ integrating, 4 integrating
technology 1 » technology _
models du » models d, models drug, models dge

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

• Adding a wildcard symbol may retrieve word variants: technology 1 integrating data _ voice communications models du developpement en afrique.*.