Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
3.1 communications » 3.1 communication, 4.1 communication, 1.1 communication
information media » information model, information models, information modeling
developpement en » developpement et, developpement des, developpement de
a information » 2 information, 1 information
technology a » technology 1, technology 3, technology 4
media rice » media device
rice 3.1 » rice 2.1, rice 3.3, rice 4.1

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

• Adding a wildcard symbol may retrieve word variants: technology a information media rice 3.1 communications costs _ developpement en afrique.*.