Perhaps you should try some spelling variations:
communications models » communication model, communication modes, communicating model
development event » development recent, development decent, development seven
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
event afrique » en afrique
models a » models 1, models 3
de data » e data, wide data, de datos

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies a information _ de data communications models a development event afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies a information _ de data communications models a development event afrique.*.