Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
perfect information » imperfect information, market information, personal information
technology perfect » technology project, technology projects, technology derecho
10 communications » 10 communication, 14 communications, 2 communications
information 2 » information 3
4 development » 2 development, 4 developing
1 afrique » l afrique, en afrique, 1 enrique
costs 4 » costs _, costs a, costs 4.2
2 does » 4 does

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

• Adding a wildcard symbol may retrieve word variants: technology perfect information 2 does 10 communications costs 4 development 1 afrique.*.