Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
integration states » integration strategy, integration systems, integration system
2.3 communication » 3.2 communication, de communication, 4 communication
le developpement » de developpement, sme development
developpement de » developpement des, developpement durable
set integration » et integration, smt integration, test integration
technology set » technology sector, technology 1, technology 2.2
states trade » states state, states three
de afrique » de l'afrique, en afrique, l afrique
trade 2.3 » trade 2.2, trade 2.1, trade 1.3
cost le » cost low, cost lcc

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

• Adding a wildcard symbol may retrieve word variants: technology set integration states trade 2.3 communication cost le developpement de afrique.*.