Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
4.1 communications » 4.1 communication, 3.1 communications, 4.1 communicating
information gaps » information gap
developpement en » developpement et, developpement des, developpement de
4 developpement » de developpement, le developpement, et developpement
a information » 2 information, 1 information
technology a » technology 1, technology 3, technology 4
gaps rice » laos rice
rice 4.1 » rice 2.1, rice 3.1, rice 1
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology a information gaps rice 4.1 communications costs 4 developpement en afrique.*.