Perhaps you should try some spelling variations:
integration models » integration model, interaction models, integrative model
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
r integration » 3 integration, 2 integration, 4 integration
technology r » technology 1, technology 3, technology 4
models trade » model trade, modern trade, models trends
trade 6.2 » trade 2.2, trade 3.2, trade 4.2
costs de » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology r integration models trade 6.2 communication costs de developpement en afrique.*.